alleryNumber of molecules in 0.5 mole of N2 is:
A3.011 * 10^23
B6.022 * 10^23
C1.204 * 10^24
D6.022 * 10^22
Answer & Solution
Correct answer: A. 3.011 * 10^23
1. One mole contains 6.022 * 10^23 molecules.
2. So 0.5 mole has 0.5 * 6.022 * 10^23.
3. = 3.011 * 10^23 molecules.
4. That matches option A.
_Source: Selina Concise Chemistry ICSE Class 10, Ch 5 'Mole Concept and Stoichiometry'_
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