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15.4 g of methanol (CH3OH) reacts completely according to the following reaction:
CH3OH (g) → CH2O (g) + H2 (g)
If 12.35 g of formaldehyde (CH2O) is produced, what is the percent yield for this reaction?

Sagot :

Unknown767idn

Explanation:

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93.5 is the percent yield for this reaction.

What is a theoretical yield?

The theoretical yield is the maximum possible mass of a product that can be made in a chemical reaction.

Step 1: Solve for the mass of CH_2O produced.

Mass [tex]CH_2O[/tex] = 15.4 g [tex]CH_3OH[/tex] × (1 mol [tex]CH_3OH[/tex] ÷ 32.04 g [tex]CH_3OH[/tex]) × (1 mol [tex]CH_2O[/tex] ÷ 1 mol [tex]CH_3OH[/tex]) × (30.03 g [tex]CH_2O[/tex] ÷ 1 mol [tex]CH_2O[/tex])

Mass [tex]CH_2O[/tex]= 14.43 g

Step 2: Determine the theoretical yield.

Theoretical yield = mass [tex]CH_2O[/tex]

Theoretical yield = 14.43 g

Step 3: Solve for the percent yield.

Percent yield = (actual yield ÷ theoretical yield) × 100

Percent yield = (13.5 g ÷ 14.43 g) × 100

Percent yield = 0.9355509356 × 100 =93.5  percent

Hence, 93.5 is the percent yield for this reaction.

Learn more about theoretical yield here:

https://brainly.com/question/21766314

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