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2 years ago

3. Analizando la siguiente reacción química de formación del agua:

Chemistry

1 answer:

Leya [2.2K]2 years ago

5 0

Answer:

3. Analizando la siguiente reacción química de formación del agua:

2 H2 (g) + O2 (g)  2 H2O (l)

Si se hacen reaccionar 10 g de hidrógeno con 10 g de oxígeno:

a) Plantee las razones molares de dicha ecuación

b) Determine si se consumen la totalidad de dichos reactivos. Demuéstrelo con los cálculos estequiométricos correspondientes.

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For the reaction below, if the rate of appearance of Br2 is 0.180 M/s, what is the rate of disappearance of

brilliants [131]

Answer:

–0.360 M/s

Explanation:

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3 years ago

A 2.75 M solution is diluted to 0.706 M, if the starting volume was 0.833L, what is the new volume?

Nitella [24]

Answer:

3.2447

Explanation:

m1v1 = m2v2

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2 years ago

After learning about climate change in her science class, selena wants to make a few changes at home so she can affect climate c

ivanzaharov [21]

Selena can change from burning fossil fuel in her home to using solar energy.

<h3>What causes climate changes?</h3>

Climate change is caused by the release of the greenhouse gases which is gotten through the use and burning of fossil fuels such as coal.

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Learn more about greenhouse gases here:

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1 year ago

An aqueous sodium acetate, NaC2H3O2 , solution is made by dissolving 0.395 mol NaC2H3O2 in 0.505 kg of water. Calculate the mola

liq [111]

<u>Answer:</u> The molality of $NaC_2H_3O_2$ solution is 0.782 m

<u>Explanation:</u>

Molality is defined as the amount of solute expressed in the number of moles present per kilogram of solvent. The units of molarity are mol/kg. The formula used to calculate molality:

$\text{Molality of solution}=\frac{\text{Moles of solute}}{\text{Mass of solvent (in kg)}}$ .....(1)

Given values:

Moles of $NaC_2H_3O_2$ = 0.395 mol

Mass of solvent (water) = 0.505 kg

Putting values in equation 1, we get:

$\text{Molality of }NaC_2H_3O_2=\frac{0.395mol}{0.505kg}\\\\\text{Molality of }NaC_2H_3O_2=0.782m$

Hence, the molality of $NaC_2H_3O_2$ solution is 0.782 m

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2 years ago

A mixture is made of 40 ml of salt water to 200 ml of solution. What percent of the solution is salt water?

Serggg [28]

Answer:

16.7%

Explanation:

40 ml of salt water + 200 ml of solution = 240 ml

40/240 = 4/24 = 1/6=16.7%

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2 years ago