Home › ICSE Class 10 › chemistry › Mole Concept and Stoichiometry › Total atoms in one mole of H2O are:
Total atoms in one mole of H2O are:
A6.022 * 10^23
B1.204 * 10^24
C1.806 * 10^24
D3.011 * 10^23
Answer & Solution
Correct answer: A. 6.022 * 10^23
1. One molecule of H2O has 3 atoms (2 H + 1 O).
2. One mole contains 6.022 * 10^23 molecules.
3. Total atoms = 3 * 6.022 * 10^23.
4. = 1.806 * 10^24 atoms.
5. So one mole of H2O has 1.806 * 10^24 atoms in all.
_Source: Selina Concise Chemistry ICSE Class 10, Ch 5 'Mole Concept and Stoichiometry'_
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