Which of the following statements is correct:
Correct answer: C. 1.008g of H2 has 6.02 x 10^23 atoms
- A. 1.008g of H has 6.02 x 10^23 atoms
- B. 2.016g of H2 has 2 x 6.02 x 10^23 atoms
- C. 1.008g of H2 has 6.02 x 10^23 atoms
- D. Both Options A and B are correct
Explanation
1 mole of any substance contains Avogadro's number of particles, which is approximately 6.02 x 10^23.The molar mass of H2 (molecular weight) is approximately 2.016 g/mol.So, 2.016 grams of H2 contain Avogadro's number of molecules, which is 6.02 x 10^23.
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
Wt. of 112 ml of oxygen at STP on liquefaction would be
The largest number of molecules are present in
The number of oxygen atoms in 4.4g of carbon dioxide is approximately?
How many electrons have to be removed to ionize 1.0 x 10⁻⁶ moles of Ne atoms to Ne⁺ ions in a neon advertising tube?
The molecular formula of glucose is:
The bond formed when two or more atoms complete their electron shells by sharing electrons is called _: