The ml of a 3 mol/L NaOH solution are required to make 100 mL of a 0.2 mol/L NaOH solution is 6.66 mL.
Given that :
The Molarity of the NaOH , M1 = 3 mol/L = 3 M
The volume of the NaOH , V1 =
The molarity of the NaOH , M2 = 0.2 mol/ L = 0.2 M
The volume of the NaOH = 100 mL
The expression is given as :
M1 V1 = M2 V2
3 × V1 = 0.2 × 0.1
V1 = ( 0.2 × 0.1) / 3
V1 = 0.02 / 3
V1 =0.0066 L
V1 = 6.66 mL
Thus, the volume required is 6.66 mL.
To learn more about molarity here
https://brainly.com/question/8732513
#SPJ4
Arrange the following elements in order of increasing metallic character: Fr, Sn, In, Ba, Se. Note: 1 most; 6- least Ba [Select] Se [Select] Fr [Select In [Select] Sn [Select
The elements in order of increasing metallic character are Fr, Ba, In, Sn, Se
The characteristics of a metal, particularly the propensity to lose electrons during chemical reactions, are referred to as an element's metallic character.
An element's capacity to lose its outer valence electrons determines whether or not it has metallic properties. Thermal and electrical conductivity, metallic sheen, hardness, ductility, and malleability are a few examples of characteristics that are associated with metallic character. Caesium is the next most "metallic" element after francium.
Keep in mind that the metallic aspect will often get softer as we approach the upper right corner. And keep in mind that this makes sense since, as we move toward the upper right corner, we start to resemble non-metals more. Fr, Ba, In, Sn, and Se are the least metallic elements in sequence.
Learn more about the metallic character here:
brainly.com/question/25500824
#SPJ4
Which energy source(s) can cause the turbine to generate electrical energy?
O tea kettle
O faucet
O bicycle
O sun
what is the "selection rule" for transitions as a result of absorption or emission of a photon?
The "selection rule" for absorption-related transitions results in the absorptive rotational transition selection rule ΔJ=±1.
The potential transitions between quantum levels brought on by the absorption or emission of electromagnetic radiation are specified by selection criteria. An oscillating electric field E0cos(t) caused by incident electromagnetic radiation interacts with a transition dipole. =e.r, where r is a vector pointing in the direction of space, is the dipole operator.
Keep in mind that the quantum numbers J and M represent, respectively, the total angular momentum and the z-component of angular momentum according to physics.
The primary need for spectroscopic transitions is the conservation of angular momentum. As a result, after a molecule absorbs or emits a photon, the entire angular momentum must be conserved.
To learn more about absorption here:
https://brainly.com/question/28383650?referrer=searchResults
Calcium nitrate reacts with ammonium phosphate to produce calcium phosphate and ammonium nitrate. If 5.40 mol of calcium nitrate reacts with 3.80 mol of ammonium phosphate to produce 1.6 moles of calcium phosphate, what is the percent yield of the reaction?
The percent yield of the reaction is 34.53%.
Calculating the percent yield of a reaction is an excellent way to measure the efficiency of the reaction and to make sure that all reactants are being used properly.
The equation for this specific reaction is:
5.40 mol calcium nitrate + 3.80 mol ammonium phosphate ---> 1.6 mol calcium phosphate + ammonium nitrate.
By using this equation, it can be determined that the theoretical yield of the reaction should be 4.62 moles of calcium phosphate.
To calculate the percent yield, we must first calculate how much was actually produced in the reaction:
1.6 moles of calcium phosphate/4.62 moles = 34.52% yield.
This means that 34.52% of the theoretical amount was actually produced in the reaction.
To learn more about yield, click here:
https://brainly.com/question/17042787
#SPJ4
A fish tank at the pet store has started leaking. It started with 40 gallons of water and is losing 0. 25 gallons per day. If there are currently 38. 5 gallons of water in the tank, how long has it been leaking?.
A fish tank at the pet store has started leaking. It started with 40 gallons of water and is losing 0. 25 gallons per day. If there are currently 38. 5 gallons of water in the tank, the time taken for leaking is 6 days.
The 40 gallons of the water , the 0.25 gallons losses per day.
the water in the tank = 38.5.
The time taken => 40 - 0.25 T = 38.5
The time taken => 40 - 38.5 = 0.25 T
The time taken => T = 1.5 / 0.25
The time taken = > T = 6 days.
Thus time has it been leaking 6 days.
To learn more about gallons here
https://brainly.com/question/23028910
#SPJ4
How many oxygen molecules are in a flask that contains 1.43 grams of oxygen!
One mole or 32 g of oxygen gas contains 6.02 × 10²³ molecules. Hence 0.044 moles or 1.43 g contains 2.6 × 10²² oxygen molecules.
What is Avogadro number?The Avogadro number represents the number of atoms contained by one mole of any substance. Avogadro number is equal to 6.02 × 10²³. One mole of every elements contains one Avogadro number of atoms.
Similarly one mole a diatomic molecule contains 6.02 × 10²³ number of molecules. The mass of these much molecules is called its molar mass.
Given weight of oxygen = 1.43 g
molar mass of oxygen gas = 32 g/mol
no. of moles = 1.43 / 32 = 0.044
Then number of molecules = 0.044 × 6.02 × 10²³ = 2.6 × 10²².
Therefore, there are 2.6 × 10²² oxygen molecules in the flask.
Find more on Avogadro number:
https://brainly.com/question/28834341
#SPJ1
What is the bond order of N2+? Express the bond order numerically. Is N2+ paramagnetic or diamagnetic? paramagnetic diamagnetic neither
Bond order of N2+ is 2.5. It is a diamagnetic substance.
Bond order is termed as the number of chemical bonds between a pair of the atoms. For example: In case of acetylene the bond order between the two carbon atoms is 3, in diatomic nitrogen the bond order is 3, and the C-H bond order is 1.
The bond order of N2+ is 2.5.
Bond order = 1 / 2[Nb - Na] Where, Nb = no. of electrons in bonding molecular orbital and Na = number of electrons in antibonding molecular orbital.
Bond order = 9-4 / 2
= 2.5
N2+ is diamagnetic in nature because they do not have any unpaired electrons they are having 14 electrons.
To know more about bond order here
https://brainly.com/question/29853110
#SPJ4
Which of the following pairs of ions represent isoelectronic species? ( All numbers next to element are subscripts)
A)Na^+ and N^2-
B)Al3- and O2-
C)K+ and Na +
D)Cl^- and F-
E) Al3- and P3-
B) Al3+ and O2- are only pair of isoelectronic species in the question mentioned below.
Define isoelectronic species:Isolectronic species are atoms, ions, or molecules that have the same number of electrons and the same electron configuration. They have the same number of protons in the nucleus, which determines the element or atom, but may have different numbers of neutrons. Isolectronic species often have similar chemical and physical properties, such as ionization energy and electron affinity.
Number of electron in both Al3+ and O2- is 10 so both are isoelectronic . and rest all have different number of electron.
To know more about isoelectronic elements click below:
https://brainly.com/question/6807313#
#SPJ4
Complete question:
Which of the following pairs of ions represent isoelectronic species? ( All numbers next to element are subscripts)
A)Na^+ and N^2-
B)Al3+ and O2-
C)K+ and Na +
D)Cl^- and F-
E) Al3- and P3-
Jose left a place p and drove toward a place q at an average speed of 40 km/h. Rob left some time later driving in the same direction at an average speed of 48 km/h. After driving for five hours rob caught up with jose. How long did jose drive before rob started?.
Jose needs six hours to get there. The object's average speed is the total distance it travels in a predetermined amount of time. A scalar value is used to represent the normal speed. It is characterized by the magnitude and lacks direction.
Given
D(distance)=RT
D=40T
T FOR JOSE IS D/40.
D FOR ROB = 48*5.
From the White House to the recycling facility, it is D miles.
240=40T
T=240/40
Jose's travel time is T=6 Hours.
Calculating the ratio of the body's total distance travelled to the time needed to complete that distance yields the average speed formula. The average speed of an item travelling at a variable speed is calculated using equation.
To learn more about speed, click here.
https://brainly.com/question/28224010
#SPJ4
law of definite proportions 2 of 22 of 2 questions question there are 175.989 g of oxygen to 22.176 g of hydrogen and 144.132 g of carbon (c) in a 342.297 g sample of sucrose (c12h22o11). what is the mass percent of oxygen in sucrose? responses
Sucrose has a mass amount of oxygen of 51.4%.
What is sucrose?Many plants, including sugars sugarcane beets, contain a form of sugar called sucrose. It also goes by the name "table sugar" and is consisting of two simple sugars, both glucose and fructose, that are connected together chemically. It is the most common sugar used in baking and food preparation, and is also used to sweeten beverages and other food items. Sucrose is commonly used in the body for energy, and is broken down into its component sugars for use by cells. It is also the main carbohydrate used for storage in the body, providing quick energy when needed. In addition, sucrose is widely used as a food preservative, preventing spoilage and maintaining the quality of food.
To learn more about sucrose
https://brainly.com/question/28122986
#SPJ4
compared to dichromate oxidizing agents, hypochlorous acid is _____________.
Hypochlorous acid (also referred to as electrolyzed water, EW) is an oxyacid of chlorine (with formula HClO) containing monovalent chlorine that acts as oxidizing or reducing agent.
It is a weak acid and highly unstable and can only exist in solution. The molecules are electron–accepting in oxidation-reduction reactions in which electrons are transferred from one 42 molecule to another.
Electrolyzed water ("electrolyzed water”, EOW, ECA, electrolyzed oxidizing water, electro-activated water or electro-chemically activated water solution) is produced by the electrolysis of water-sodium chloride solution. The electrolysis of such salt solutions produces hypochlorous acid, hypochlorite, and free chlorine.
To know more about HCLO here
https://brainly.com/question/87117
#SPJ4
2 SO2 (g) + O2(g) = 2SO3(g) Kp = 2 x 10^5 At a certain temperature, SO2(g) and O2(g) react to produce SO2 (g) according to the chemical equation shown above. An evacuated rigid vessel is originally filled with SO2 (g) and O2(g), each with a partial pressure of 1 atm. Which of the following is closest to the partial pressure of O2(g) after the system has reached equilibrium, and why? A) O atm because K2 is very large, nearly all the SO2 (g) and O2(g) are consumed before the system reaches equilibrium B) 0.5 atm, because Kp is very large, nearly all the SO2 (g) is consumed before the system reaches equilibrium, but an excess amount of O2(g) remains at equilibrium C) 1 atm, because Kp is very large, the system is already near equilibrium, and there will be very little change to the partial pressure of O2(g). D) 1.5 atm because Kp is very large, the decomposition of any SO2 (g) that forms increase the amount of O2(g) at equilibrium.
Due to the extremely large Kp, almost all of the SO2 (g) is burned before the system reaches equilibrium, but an excess of O2 (g) remains at equilibrium, resulting in a partial pressure of 0.5 atm once the system has done so.
What exactly is balance?Chemical equilibrium is the condition in which the concentrations of the reactants and products are equal and have no further tendency to fluctuate over time, with no discernible change in the features of the system.The equilibrium moves to the side of the reaction where there are less moles of gas as the pressure increases. When the pressure decreases, the equilibrium moves to favour the reaction that produces more gas molecules.Partial pressure is inversely proportional to volume, according to the ideal gas law. Additionally, it correlates with both the temperature and the amount of moles. At equilibrium, the reaction at room temperature yields the partial pressures of the gases.To learn more about equilibrium refer to :
https://brainly.com/question/14001401
#SPJ4
Jose’s lab instructor gives him a solution of sodium phosphate that is buffered to a pH of 4. Because of an error that he made while calibrating the pH meter, Jose’s measurements of the pH of the sodium phosphate solution are 5.4, 5.4, and 5.4
Since Jose’s measurements of the pH of the sodium phosphate solution are 5.4, 5.4, and 5.4. The statement that best describes his results is option B: They are precise but not accurate.
What is Jose’s measurements about?In this case, the pH readings that Jose obtained are precise because they are all the same and do not vary significantly. However, they are not accurate because they do not match the actual pH of the solution, which his lab instructor had told him was 4.
Note that Precision refers to how close the results of a measurement are to each other, while accuracy refers to how close the results are to the true or accepted value. It is possible for a measurement to be precise but not accurate, as in this case, or for a measurement to be accurate but not precise. It is also possible for a measurement to be both precise and accurate, or for it to be neither precise nor accurate.
Learn more about Jose’s measurements from
https://brainly.com/question/1432176
#SPJ1
See full question below
Jose’s lab instructor gives him a solution of sodium phosphate that is buffered to a pH of 4. Because of an error that he made while calibrating the pH meter, Jose’s measurements of the pH of the sodium phosphate solution are 5.4, 5.4, and 5.4.
Which statement best describes his results?
They are accurate but not precise.
They are precise but not accurate.
They are both precise and accurate.
They are neither accurate nor precise.
1s2 2s2 2p6 3s2 3p6 4s1 3d5 is the electronic configuration of
a.
Cr2+
b.
Cu
c.
Cu2+
d.
Cr
Answer:
d. Cr
Explanation:
The electron configuration shows a total of 24 electrons. A nuetral atom with 24 electrons will have 24 protons. The number of protons defines the element. Element 24 is chromium, Cr. Cr2+ isn't valid, since Cr has 24 protons and the +2 charge would mean that that the nucleus would have 26 protons, iron (Fe). Copper, Cu, has 29 protons. Since there are only 24 electrons, the copper would be Cu5+. Same rationale for rejecting Cu2+.
The answer is d. chromium, Cr.
Write lewis structure of CF2H2 :ť: :F-ċ-H B c- 1 which one is correcte how do we know moleculo polar or non-polar ?
The Lewis structure for [tex]CF_2H_2[/tex] is:
H H
l l
C = F
|
F
[tex]CF_2H_2[/tex] is a non-polar molecule. To determine if a molecule is polar or non-polar, we need to look at the arrangement of atoms and their polarities. If the polarities of the atoms are symmetrical, the molecule is non-polar, otherwise, it is polar. In this case, the bond dipoles are symmetrical and cancel out each other resulting in a non-polar molecule.
A Lewis structure, also known as a Lewis dot diagram or electron dot diagram, is a way of representing the valence electrons of an atom in a chemical compound. The structure is named after Gilbert N. Lewis, who first proposed it in 1916. Lewis structures depict the chemical symbol of the atom in the center, with dots representing the valence electrons surrounding it. The number of dots corresponds to the number of valence electrons in the element.
Learn more about lewis structure, here https://brainly.com/question/20300458
#SPJ4
_________ are materials that can be made by chemical processes instead of being extracted from a natural resource?
What is the formula of Sodium Sulfide?
A) Na3S₂
B) NaS₂
C) Na₂S
D) Nas
Answer:C) Na₂S
Explanation:
1. how many atoms are present in a 3,050.0 g sample of C2H6O2 (antifreeze ethylene glycol)
2. how many atoms are present in a 400.0g sample of C6H12O6 (glucose)
3. How many atoms are present in a 0.750 g sample of C13H18O2 (Ibuprofen)
Please answer all 3 questions or do not answer at all. Thank you.
The number of atoms in a compound can be calculated by multiplying the number of moles in the substance by Avogadro's number.
According to this question, the mass of certain compounds were given. This means that we have to estimate the number of moles in each substance first as follows:
no of moles in ethylene glycol = 3050g ÷ 62.07g/mol = 49.14 molesno of moles in glucose = 400g ÷ 180.15 g/mol = 2.22 molesno of moles in ibuprofen = 0.750g ÷ 206.29g/mol = 0.0036 molesNext, we multiply each number of mole by Avogadro's number (6.02 × 10²³) as follows:
Ethylene glycol = 49.14 × 6.02 × 10²³ = 2.95 × 10²⁵ atomsGlucose = 2.22 × 6.02 × 10²³ = 1.336 × 10²⁴ atomsIbuprofen = 0.0036 × 6.02 × 10²³ = 2.167 × 10²¹ atomsLearn more about no of atoms at: https://brainly.com/question/8741372
#SPJ1
balancing chemical equations
(pls help a girl out)
H₂O₂ → H₂O + O₂
Answer:
2H2O2 ---> 2H2O+O2
Explanation:
the answer is: 2 H₂O₂ → 2 H₂O + O₂
explanation:
This reaction is caused by the spontaneous breakdown of hydrogen peroxide into water and oxygen.
2 molecules of hydrogen peroxide and 2 molecules of water are added. Because oxygen is naturally diatomic, the total number of atoms of each element on both sides of the equation is now the same, resulting in a balanced equation.
know more about balancing chemical equations: https://brainly.com/question/14072552
Predict the major organic product of the following reaction.
Answer:What is minor and major?
minor is a smaller scale than major, and may be played on lower strings while major is played on higher strings. In the music world, minor scales are often used to create melodies and chord progressions.
The half-reaction that should occur at the anode during electrolysis of an aqueous potassium bromide solution is
The half reaction that should occur at the anode during electrolysis of an aqueous potassium bromide solution is formation of bromine from its ions.
As we know, that anions are negatively charged anions. So, these get oxidised to get stable state at anode. Thus, negative ions will react at anode. Similarly cathode has cations that are positively charged. Thus, reduction will take place at the cathode.
In the electrolysis reaction of aqueous potassium bromide -
KBr -> [tex] {K}^{+} [/tex] + [tex] {Br}^{-} [/tex]
In this ionization reaction, the KBr is potassium bromide, [tex] {K}^{+} [/tex] are potassium ions amd [tex] {Br}^{-} [/tex] are bromine ions. The negatively charged bromine ions will be oxidised at anode.
2[tex] {Br}^{-} [/tex] -> [tex] Br_{2}[/tex] +[tex] {2e}^{-} [/tex]
Thus, bromine will be formed at anode.
Learn more about bromine -
https://brainly.com/question/23894494
#SPJ4
Recently, the number of elks has increased significantly in a forest. These elks often enter the nearby grassland and eat up all the grass. This is indirectly affecting the livestock industry in that area. Which method might solve the nuisance caused by these excess elks in the fores
The method might solve the nuisance caused by these excess elks in the forest is research. Therefore, option C is correct.
What is forest ?A forest is a land area dominated by trees. Hundreds of definitions of forest are used around the world, with factors such as tree density, tree height, land use, legal standing, and ecological function all being considered.
The word forest comes from the Old French forest (also forès), which means "forest, vast expanse covered by trees"; forest was first used in English to describe wild land set aside for hunting that did not necessarily have trees on it.
A forest is a complex ecological system in which trees predominate. A forest is nature's most efficient ecosystem, with a high rate of photosynthesis that affects both plant and animal systems in a complex web of organic relationships.
Thus, option C is correct.
To learn more about the forest, follow the link;
https://brainly.com/question/22279329
#SPJ1
Your question is incomplete, probably your question was
Recently, the number of elks has increased significantly in a forest. These elks often enter the nearby grassland and eat up all the grass. This is indirectly affecting the livestock industry in that area. Which method might solve the nuisance caused by these excess elks in the forest?
A- establishing WMA
B- hunting
C- research
D-habitat manipulation
Properties of pure substances, Substance X and Substance Y, are given below.
1) Substance X reacts with air
2) Substance Y reacts with air and water
3) Substance X and Substance Y react to produce Substance Z
Which of the following is definitely true about Substance Z?
A. It reacts only with air.
B. It reacts with both air and water.
C. It will neither react with air nor water.
D. It may or may not react with air or water.
The statement that is definitely true about Substance Z, a compound is: It may or may not react with air or water.
The correct option is D.
What are pure substances?Pure substances are substances that are composed of entirely the same type of particles or molecules.
Examples of pure substances are elements and compounds.
Elements are pure substances that are cannot be split into simpler units by an ordinary chemical process. Examples are sodium, oxygen, etc.
Compounds are substances that are composed of two or more elements chemically combined together. Examples are sodium chloride and carbon dioxide.
Considering the properties of Substance Z:
Substance X and Substance Y react to produce Substance Z;
Substance Z is a compound and may have properties different from X and Y.
Learn more about compounds at: https://brainly.com/question/26487468
#SPJ1
How many sublevels are in the n = 3 level?
How many orbitals are in the n = 3 level?
What is the maximum number of electrons in the n = 3 level?
The most likely position of an electron around an atom is described in three dimensions by an orbital.
Where is the orbitals?The n=3 level of an atom consists of three sublevels. There are three subshells for the shell with n = 3, namely the s, p, and d. These subshells are separated into a predetermined number of different orbitals, each of which has a distinct form and a predetermined amount of electrons.
The n=3n=3 shell has six in-shell divisions. Three orbitals are found in each subshell. With 18 orbitals as a result, the n=3n=3 shell.
The n=3 level of an atom consists of three sublevels. There are three subshells for the shell with n = 3, namely the s, p, and d.
Consequently, the third electron shell has a total of 9 orbitals (1 + 3 + 5).
The maximum number of electrons is therefore 18 for n=3. There are 18 electrons total, 9 of which can have a spin of 21 and the other 9 spins of +21.
To learn more about orbitals refer to:
https://brainly.com/question/20319149
#SPJ4
What do these two changes have in common?
What do these two changes have in common?
salt and vinegar removing tarnish from a penny
adding dish soap to water in a sink
Select all that apply:
Both are caused by heating
Both are only physical changes
Both converse mass
Both are changes of state
Answer:
Both are chemical changes.
Both converse mass
Explanation:
at what temperature will he atoms have the same the root mean square speed as n2 at 25 oc? Solve this problem without explicitly calculating the speed of N2.
At 1911 ° C temperature will He atoms have the same the root mean square speed as N2 at 25°C
According to formula of rms speed
[tex]U_{rms}[/tex] = [tex]\sqrt{\frac{3RT}{M} }[/tex]
[tex]U_{rms}[/tex] = (N2) = [tex]U_{rms}[/tex] (He)
[tex]\sqrt{\frac{3RT}{28} }[/tex] = [tex]\sqrt{\frac{3R 273}{4} }[/tex]
T = 273 x 28 / 4 = 1911 °C
The square root of temperature and the square root of the molar mass are both directly proportional to the rms velocity. Thus, doubling the rms velocity of the molecules when the temperature of a given gas is quadrupled. The arithmetic mean of the velocity of individual particles or molecules is known as Average velocity, while the root mean square velocity is defined as the square root of the mean square of the velocity of individual particles or molecules. The average speed of an object on a particular axis is known as the rms velocity.
To learn more about rms click here:
https://brainly.com/question/3157457
#SPJ4
please help me really quick
True because The only time I can use the "take the sum and divide by the number of integers" method is when I have equal proportions of each isotope is true.
What are integers?The collection of whole numbers and negative numbers is known as an integer in mathematics. Integers, like whole numbers, do not include the fractional portion. Integers can therefore be defined as numbers that can be positive, negative, or zero but not as fractions. On integers, we can carry out all arithmetic operations, including addition, subtraction, multiplication, and division. Integer examples include 1, 2, 5, 8, -9, -12, etc. "Z" stands for an integer. Let's talk about how numbers are defined, their symbol, their kinds, their operations, their rules, and their associated attributes.
Learn more about integers here:https://brainly.com/question/7589093
#SPJ1
S satellite was in two separate crashes. in both crashes, the satellite had the same mass of 5000kg. The black asteroid has a mass of 1500 X 50 kg and the gray asteroid has a mass of 100 x 50 oh. engineers want to know about the speed and direction of the satellite after the crashes. which crash caused a greater change in velocity for the satellite? please help i will mark you brainliest
According to law of conservation of mass, asteroid with greater mass that is black asteroid of 7500 kg would cause a greater change in velocity for satellite as it has greater mass which on collision would change direction of satellite.
What is law of conservation of mass?According to law of conservation of mass, it is evident that mass is neither created nor destroyed rather it is restored at the end of a chemical reaction .
Law of conservation of mass and energy are related as mass and energy are directly proportional which is indicated by the equation E=mc².Concept of conservation of mass is widely used in field of chemistry, fluid dynamics.
Learn more about law of conservation of mass,here:
https://brainly.com/question/28711001
#SPJ1
Which of the following molecules can form hydrogen bonds?
A. HI
B. BH3
C. CH4
D. HF
E. NaH
The molecules which can form the hydrogen bonds is the D) HF. The HF can form the hydrogen bond.
The hydrogen bond is the force of the attraction between the polar molecule that arises by the dipole - dipole interaction between the hydrogen atom that is directly attached to the electronegative atom and the more electronegative atom lies in the vicinity of hydrogen.
The hydrogen bonding in the given molecule is shown below :
H - F ----- H - F ------ H - F ------- H - F ----- H - F
The hydrogen bonding are of two types :
Intermolecular hydrogen bondingIntramolecular hydrogen bondingTo learn more about hydrogen bonds here
https://brainly.com/question/15099999
#SPJ4
Consider the following equilibrium system at 25°C: HCO3−(aq) + SO42−(aq) ↔ CO32−(aq) + HSO4−(aq) Keq = 4.0 x 10−9
The Ka for HCO3− is 4.8 x 10‒11 at 25°C. What is the Ka for HSO4− at 25°C ?
a. 1.2 x 10−2
b. 2.0 x 10−8
d. 7.2 x 10−4
e. 1.9 x 10−19
f. 8.3 x 101
The Ka for the reaction HCO3−(aq) + SO42−(aq) ↔ CO32−(aq) + HSO4−(aq) at 25°C is 4.0 x 10−9. Using this equilibrium expression and the Ka value of HCO3− at 25°C (4.8 x 10‒11), the Ka for HSO4− at 25°C can be calculated to be 2.0 x 10−8.
To find the Ka for HSO4− at 25°C, we need to use the equilibrium expression for the given reaction and the Ka value of HCO3− at 25°C.
Equilibrium expression: K"eq" = [CO3^2−][HSO4^−]/[HCO3^−][SO4^2−]
Given Ka value of HCO3− at 25°C: Ka = 4.8 x 10‒11
Therefore, Ka for HSO4− at 25°C = 4.0 x 10−9 x (4.8 x 10‒11) = 2.0 x 10−8
The Ka for HSO4− at 25°C is 2.0 x 10−8.
The Ka for the reaction HCO3−(aq) + SO42−(aq) ↔ CO32−(aq) + HSO4−(aq) at 25°C is 4.0 x 10−9. Using this equilibrium expression and the Ka value of HCO3− at 25°C (4.8 x 10‒11), the Ka for HSO4− at 25°C can be calculated to be 2.0 x 10−8. This indicates that the protonation of HSO4− is the more favorable reaction at 25°C.
learn more about Equilibrium expression here
https://brainly.com/question/12504520
#SPJ4
