what volume of co2 is produced at stp when 270g of glucose are consumed in the following reaction? c6h12o6 + 6o2(g) -> 6co2 (g) + 6h2o(l)

Answer:

= - 59.7 kJ/mol

Explanation:

From the given information:

no of moles of AgNO3 = 100/1000 × 0.100 = 0.01 mol

no of moles of NaCl = 100/1000 × 0.200 = 0.02 mol

The total volume of the solution is:

= (100 + 100 ) mL

= 200 mL

mass of the solution = 200 × 1.00 = 200 g

Heat gained by the solution:

= mass × specific heat × temperature change in solution

= 200× 4.184 × (25.3 - 24.6)

= 585.76 J

Heat gained by calorimeter

= heat capacity × change in temperature of caiorimeter

= 15.5 × (25.3 -24.6)

= 10.85 J

Thus, total heat released = total heat gained

Q = 585.76 + 10.85 J

Q = 596.61 J

From above, it is obvious that AgNO3 is the limiting reagent

∴

ΔH_{rxn} = total heat released/ moles of AgNO3

= -596.61/0.01

= 59661 J/mol

= - 59.7 kJ/mol

Answer:

PLZZ like it tuk me to long to explan

Explanation:

The reaction between zinc and sulfur can be shown in what is called a chemical equation .  In words, we could write the reaction as:

zinc + sulfur → zinc sulfide

The more convenient way to express a chemical reaction is to use the symbols and formulas of the substances involved:

Zn + S → ZnS

The substance(s) to the left of the arrow in a chemical equation are called reactants.  A reactant is a substance that is present at the start of a chemical reaction.  The substance(s) to the right of the arrow are called products .  A product is a substance that is present at the end of a chemical reaction.  In the equation above, the zinc and sulfur are the reactants that chemically combine to form the zinc sulfide product.

There is a standard way of writing chemical equations.  The reactants are all written on the left-hand side of the equation, with the products on the right-hand side.  An arrow points from the reactants to the products to indicate the direction of the reaction:

reactants → products

When appropriate, a symbol may be written above or below the arrow to indicate some special circumstance.  The symbol “Δ” is often used to indicate that the reaction is to be heated.

The presence of the arrow also indicates that the reaction goes in one direction under the conditions indicated.  There are reactions which can be easily reversed, but we will not take those up right now.

There are a wide variety of reactions possible: elements may form compounds (as seen in the reaction above), compounds may form elements (water will break down in the presence of an electric current to form hydrogen gas and oxygen gas) or compounds may combine, break apart, or rearrange to form new materials.

Answer: 3 4 a noodles

Explanation: just is[tex]\lim_{n \to \infty} a_n \lim_{n \to \infty} a_n \lim_{n \to \infty} a_n \left[\begin{array}{ccc}1&2&3\\4&5&6\\7&8&9\end{array}\right] \sqrt{x} x^{2} x^{2}[/tex]

Answer:

It is known generally that polar compounds are soluble in polar solvents. Based on the structure of benzoic acid, it comprises the non-polar C6H6 group and polar COOH group. Based on the structure, in benzoic acid, the nonpolar hydrocarbon outweighs and influences the polar part as nonpolar, due to which benzoic acid is not soluble in water.

On the other hand, benzoic acid produces sodium salt benzoic acid when it reacts with 2.5 M sodium hydroxide, this salt is ionic. Generally, the ionic compounds are soluble in water. Therefore, the salt of benzoic acid gets dissolved in water. Hence, benzoic acid is soluble in the solution of sodium hydroxide.

Answer:

c

Explanation:

Gas change and climate change are very similar and thats why its c

Answer:

C

Explanation:

Answer:

1.16 mol

Explanation:

Given data:

Mass in gram Mg(OH)₂ = 68 g

Number of moles of Mg(OH)₂ = ?

Solution:

Formula:

Number of moles = mass/molar mass

Molar mass of Mg(OH)₂ = 58.32 g/mol

By putting values,

Number of moles = 68 g/ 58.32 g/mol

Number of moles = 1.16 mol

Answer:

.................................................................                                                                           :3

Explanation:

Answer:

See explanation and images attached

Explanation:

There are two compounds that could have molecular formula of C2H6O, they are ethanol and methoxy methane (trivial name: methyl ether).  The structures of the two compounds are shown in the image attached as obtained from quora.

The boiling point of methoxymethane is -24.8°C  while that of ethanol is about 78.5°C. The reason for the high boiling point of ethanol is the presence of intermolecular hydrogen bonding leading to a stronger intermolecular interaction compared to methoxymethane molecules held together only by very weak dispersion forces.

The Lewis structures of ethanol and methoxymethane are attached below.

Ethanol (C₂H₆O) and methoxymethane (CH₃OCH₃) are both organic compounds, but they have different molecular structures and intermolecular forces, which can affect their boiling points.

Due to the presence of hydrogen bonding in ethanol, its boiling point is significantly higher compared to methoxymethane. The boiling point of ethanol is around 78.3°C (173°F), while the boiling point of methoxymethane is approximately -24.8°C (-12.6°F). The difference in boiling points arises from the stronger intermolecular forces, namely hydrogen bonding, present in ethanol.

Learn more about Lewis's structure, here:

https://brainly.com/question/29756546

#SPJ6

Answer:

Did you get the answer to this?

Explanation:

I need this too.

Answer: In standard decimal notation, the speed of light is 299,800,000.0 meters per second. In scientific notation this is written as 2.998x108 meters per second, meaning that the true position of the decimal point is 8 digits to the right. In this case, that means filling in the empty spots with zeros.

Hope it helped

Answer:

gfxshsfh5eyggs

shtrsgrtgdshs

Explanation:

dfhdhnfxgnfgbc. wrgsfd sh srtwe5yr

i took the test and it is a

Explanation:

because

Answer:

its a

Explanation:

Answer: Desert i do the quiz and it's corect

Answer:

the molecules . . . separate and eventually evaporate into gas.

Explanation:

Answer:

1-Chloropropane is likely the answer (attached a picture)

Explanation:

First off there are 3 peaks and 3 carbons which indicates to me that this will be a chain without any symmetry and that each carbon has hydrogens on it.  

Second the triplet at 1.0 that integrates to 3 likely correlates to a CH3 (methyl) group.  Peaks are very upfield triplets that integrate to three are almost always methyl peaks.

Third the triplet at 3.7 is indicative of being next to the halogen.  Hydrocarbons by themselves do not have peaks that far downfield meaning that its shift could only be explained by the chlorine being involved.  Also we know that this can't be next to the methyl group since its multiplicity is to low to be next to it.  

That leaves the multiplet at 1.75 being the hydrogens on the middle carbon which also makes sense since it is more downfield then the methyl group (due to being closer to the chlorine) but is not far enough downfield to say the chlorine is there.  It also makes sense that it is a multiple since it would be a hextet due to the adjacent 5 hydrogens which can't always be resolved.

I hope this helps and let me know if anything is unclear or needs further explanation.

Answer:

Yes it is, because scientist use this to demostrate the water cycle

Explanation:

Answer:

[PH₃(g)] = 0.0432M at equilibrium

Explanation:

Given:       PH₃BCl₃(s) => PH₃(g) + PH₃(g); Kc = 1.87 x 10⁻³

*Let solids have concentration value = 1.0M and apply common ion (compound) effect to Ci b/c of 0.070g BCl₃ added initially.

        PH₃BCl₃(s)  =>         BCl₃(g)              +            PH₃(g

Ci:        5.00g                    0.07g                            0.00g    

         *≅1.0M(s)           =0.07g/115.81g·mol⁻¹

                                   = 6 x 10⁻⁶ mol

                                   = 6 x 10⁻⁶mol/4.5L

                                   = 1.3 x 10⁻⁴M                    = 0.00M

ΔC:       -x                            +x                                 +x

Ceq:    1M - x ≅ 1M      = (1.3 x 10⁻⁴ + x)M               = x

Kc = [BCl₃(g)][PH₃(g)] = (1.3 x 10⁻⁴ + x)(x) = 1.87 x 10⁻³

=> 1.3 x 10⁻⁴·x + x² = 1.87 x 10⁻³

=> x² + 1.3 x 10⁻⁴·x  + 1.87 x 10⁻³ = 0

=> x = -b ± [Sqrt(b² - 4ac)] / 2a

=> x = -1.3 x 10⁻⁴ ± Sqrt[(1.3 x 10² - 4(1)(1.87 x 10⁻³)] / 2(1)

=> x = 0.0432M in PH₃ at equilibrium

Check:  

Kc = [BCl₃(g)][PH₃(g)] = (1.3 x 10⁻⁴ + 0.0432)(0.0432) = 1.87 x 10⁻³ (QED)                            

Answer:rocks

Explanation:

Answer:

The answer is Catalytic

Answer: In physics, potential energy is the energy held by an object because of its position relative to other objects, stresses within itself, its electric charge, or other factors.

Explanation:

Answer:

3.10 L

Explanation:

A reaction at 11.0°C evolves 133.mmol of boron trifluoride gas. Calculate the volume of boron trifluoride gas that is collected. You can assume the pressure in the room is exactly 1 atm. Round your answer to 3 significant digits.

Step 1: Convert the temperature to the Kelvin scale

When working with gases, we must use the absolute temperature scale. We can convert the temperature from Celsius t Kelvin using the following expression.

K = °C + 273.15

K = 11.0°C + 273.15

K = 284.2 K

Step 2: Convert the amount of matter to moles

We will use the conversion factor 1 mol = 1000 mmol.

133 mmol × (1 mol/1000 mmol) = 0.133 mol

Step 3: Calculate the volume of boron trifluoride gas

We will use the ideal gas equation.

P × V = n × R × T

V = n × R × T / P

V = 0.133 mol × (0.0821 atm.L/mol.K) × 284.2 K / 1 atm

V = 3.10 L

Answer:

I think ur answer would be B or are wispy

Explanation:

hope this helps <3

The description that refers to cirrus clouds is : ( B ) Are wispy

Cirrus clouds are white, short, detached clouds that look like human hair, they are found mainly at high altitudes and appear wispy looking like a turf of hair. They are the whitest of all clouds but may take the color of the sunset.

Therefore we can conclude that the description that refers to cirrus clouds is that they are wispy.

Learn more about cirrus clouds : https://brainly.com/question/3586202

Answer:  In two molecules of carbon dioxide (2CO2), there are _____.

two atoms of carbon

four atoms of oxygen

Answer:        HHHHHHHHHHHHHHHHHHHHHHAHAHHAHAHHAHHAHHAHHAHHAHAHAHHHAHAHAHHAHAHHA

DON"T KNOW?

Explanation:

Answer:

See explanation

Explanation:

2)CH4 + 2O2 -------> CO2 + 2H2O

96g of O2 = 96g/32g/mol = 3 moles of O2

If 1 mole of CH4 reacts with 2 moles of O2

x moles of CH4 reacts with 3 Moles of O2

x = 3/2 = 1.5 moles of CH4

Mass of CH4 = 1.5 moles * 16 = 24 g of CH4

3)C6H6 + HNO3 ---->C6H5NO2 + H2

Number of moles in 15 g of benzene = 15 g/ 78 g/mol = 0.19 moles

Number of moles of 18 g of  C6H5NO2 = 18g/123 g/mol = 0.15 moles

From the reaction equation;

1 mole of C6H6 yields 1 mole of C6H5NO2

Hence 0.19 moles of C6H6 also yields 0.19 moles of C6H5NO2

% yield = actual yield/ theoretical yield * 100

actual yield = 0.15 moles

Theoretical yield = 0.19 moles

% yield = 0.15/0.19 * 100

% yield = 78.9%

4)The reaction equation is

KOH + CH3COOH ------> CH3COOK + H2O

number of moles of acetic acid reacted = 0.215g/60 g/mol = 3.58 * 10^-3 moles

Since the reaction is 1:1, 3.58 * 10^-3 moles moles of KOH is used.

But;

n = CV

n = number of moles

C = concentration of reactants

V = volume of solution

V = n/C

V= 3.58 * 10^-3 moles/0.225M = 0.016 L

5) 3AgNO3 + AlCl3 -----> Al(NO3) + 3AgCl

Number of moles in 0.325 g of AgCl = 0.325g/143 g/mol = 2.27 * 10^-3 moles

From the reaction equation;

1 mole of AlCl3 yields 3 moles of AgCl

x moles of AlCl3 yields 2.27 * 10^-3 moles of AgCl

x = 2.27 * 10^-3 moles/3

x = 7.6 * 10^-4 moles

From;

n = CV

C = n/V

C = 7.6 * 10^-4 moles * 1000/185.5

C= 4.1 * 10^-3 MolL-1

6)From;

C1V1 =C2V2

Where;

C1 = initial concentration

V1= initial volume

C2= final concentration

V2= final volume

100 * 12 = 4.75 * V2

V2 = 100 * 12/4.75

V2 = 252.6 ml

Volume of water added = 252.6 - 100 = 152.6 ml of pure water

Answer:

When an electric current is passed through liquid water (H2O), it changes the water into two gases—hydrogen and oxygen. The molecules of water break apart into individual atoms.

hope this helps

Answer:

Endothermic reaction

Explanation:

A cold pack is used as a cold compress in order to numb pain caused by minor injuries. it is useful in first aid treatment of bruises, sprains, cuts and burns in addition to the application of a bandage.

A cold pack functions by absorbing heat away from the surrounding thereby decreasing the temperature and making the surface to feel cool. This is an endothermic reaction.

In an endothermic reaction, heat is absorbed from the environment and the reaction surface feels cool. Hence, an endothermic reaction is most useful in making a cold pack because the product of the endothermic reaction will feel cool to touch making it suitable to be used as a cold pack in first aid.