1 mole of CH1 contains
Correct answer: A. 6.02 x 10^23 atoms of H
- A. 6.02 x 10^23 atoms of H
- B. 4 g-atom of hydrogen
- C. 1.81 x 10^2 molecules of CH
- D. 3.0 g of carbon
Explanation
The chemical formula CH1 represents one mole of methane. Methane (CH4) is composed of one carbon atom (C) and four hydrogen atoms (H).1 mole of CH1 contains:● 1 mole of C atoms● 4 moles of H atomsAvogadro's number (6.02×10236.02×1023) is the number of entities (atoms, molecules, etc.) in one mole of a substance. Therefore, for hydrogen (H), which is a diatomic molecule (H2), 1 mole of hydrogen contains 6.02×10236.02×1023 atoms.So, for the given molecule CH1:● 1 mole of C contains 6.02×1023 atoms of C.● 4 moles of H contain 4×6.02×1023=24.08×1023 atoms of H.The correct answer is option a. 6.02×1023 atoms of H.
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
Bromine has two isotopes having the relative abundance as "Bras 50.51% and Bras = 49.49%.the average atomic mass of bromine is
For the reaction 2SO2+O2⇌2SO3
In which gaseous equilibrium more product will be formed by decreasing pressure
How many moles of helium gas occupy 22.41 at 0°C at 1 atm. Pressure
All of the following statements are incorrect for 20 moles of hydrogen per oxide except is has
An X gram of calcium carbonate was completely burnt in air. The weight of the solid residue formed is 28 g. what is the value of X in grams