Question
Based on the following chemical equation, answer the questions below. Show all your calculation
The balanced chemical reaction of iodine with hydrogen sulfide is as follows:
H2S(g)+I2(s)-----2HI(g) + S(s)
(a) Based on the above chemically balanced equation, how many grams of HI should be produced from the reaction of 25.0g of H2S when there is excess amount of I2?
(b) Actually 30.0g of HI is produced in this reaction, what is the percent yield of HI?
The balanced chemical reaction of iodine with hydrogen sulfide is as follows:
H2S(g)+I2(s)-----2HI(g) + S(s)
(a) Based on the above chemically balanced equation, how many grams of HI should be produced from the reaction of 25.0g of H2S when there is excess amount of I2?
(b) Actually 30.0g of HI is produced in this reaction, what is the percent yield of HI?
Answers
a. mols H2S = grams/molar mass
Use the coefficients in the balanced equation to convert mols H2S to mols HI. That will be ?mols H2S x (2 mols HI/1 mol H2S) = ?mols H2S x 2/1 = ? mols HI
Then convert mols HI to grams HI. grams = mols x molar mass. This is the theoretical yield (TY).
b. Actual yield (AY) is 30.0 g.
%yield = (AY/TY)*100 = ?
Use the coefficients in the balanced equation to convert mols H2S to mols HI. That will be ?mols H2S x (2 mols HI/1 mol H2S) = ?mols H2S x 2/1 = ? mols HI
Then convert mols HI to grams HI. grams = mols x molar mass. This is the theoretical yield (TY).
b. Actual yield (AY) is 30.0 g.
%yield = (AY/TY)*100 = ?
Related Questions
Based on the following chemical equation answer the question below show all your calculation
The...
Answer the following questions based on the following electrochemical reaction:
Al(s) + Cu 2+...
A balanced chemical equation shows that mass is conserved in a chemical reaction. To balance a chemi...
Write word and balanced chemical equation from the reaction; hydrogen sulfide is responsible for the...