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Ideal Gas Equation

How many atom...

Question

How many atoms are present in each pair?
A. $2 g$ Hydrogen
B. $16 g$ Oxygen
C. $14 g$ Nitrogen
D. $8 g$ Helium
(Atomic mass $H = 1, O = 16, N = 14, H e = 4$ )

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Solution

$A, D - 2 \times 6.022 \times 10^{23}$
$B, C - 6.022 \times 10^{23}$

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