Find the weight of 0.2 mole of hydrogen gas
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Answer:
Explanation:
number of mole , n= 0.2 n
atomic mass of h atom= 1
atomic mass of h2 molecules = 2
to find : mass or weight of h2 = ?
sol:
moles = mass of element/ atomic mass of element
0.2 = m/2
0.2 *2 = m or mass of h2
0.4g = mass of h2
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