If 41 gram of H2SO4 react with 80 gram of NaOH how much reactant will be left over after the reaction is complete
Correct answer: C. 46.5g NaOH
- A. 24.5g H2SO4
- B. This answer is incorrect because the non limiting reagent is NaOH (in excess).
- C. 46.5g NaOH
- D. 60g NaOH
Explanation
Mr of NaOH= 23 + 16 + 1 = 40g/mol Mr of H2SO4= (2x1) + 32 + (4x16) = 98g/mol 2NaOH + H2SO4 => Na2SO4 +2H2O 2x40g. 98g. xg. 41g x= 33.5g 80-33.5 => 46.5g of NaOH.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Fundamental Concepts of Chemistry
Mole calculations connect mass, number of particles and Avogadro's number, while balanced equations provide the mole ratios used in stoichiometry. Questions cover limiting and excess reactants, theoretical yield and percentage yield, including identifying which reactant is consumed first and comparing the actual product with the maximum possible product.
Practise Fundamental Concepts of Chemistry
894 free Fundamental Concepts of Chemistry MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Fundamental Concepts of Chemistry questions
Indicate the incorrect statement from the following
Which of the following has the highest number of atoms
How many moles of sodium are present in 0.1 gram of sodium
when 8 grams of H2 react with two moles of O2 how much water will be formed
if 20 g CaCO3 is a added to 20 gram HCl select the true statement.
in the reaction 4NH3+5O2--4NO+6H2O. When one mole of ammonia and one mole of Oxygen are made to react to completion then