Which of the following has the maximum mass?
Correct answer: B. 25 g mole of water
- A. 25 g of iodine
- B. 25 g mole of water
- C. 25 g atom of oxygen
- D. 25 g of nitrogen gas
Explanation
Calculate the mass of each option: A) 25 g; B) 25 moles × 18 g/mol (water) = 450 g; C) 25 moles × 16 g/mol (oxygen atoms) = 400 g; D) 25 g. Comparing these, 450 g is the maximum.
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
The relative atomic mass of oxygen is 16 amu. What is the mass of 2 moles of oxygen gas?
What is the number of moles of CO₂ which contain 16 g of oxygen?
What is the volume occupied by 4.4g of CO₂ at STP?
The absorption of CO₂ in KOH solution during combustion analysis is a:
Which of the following compounds has an empirical formula but no molecular formula?
The sole products of the complete combustion of a simple hydrocarbon are: