The father in this pedigree has dimples. The mother does not. How many of their boys also have dimples?
2 answers:
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Answer:
1.7 mol/dm3
Explanation:
working out in the image
The volume of H₂ evolved at NTP=0.336 L
<h3>Further explanation</h3>Reaction
Decomposition of NH₃
2NH₃ ⇒ N₂ + 3H₂
conservation mass : mass reactants=mass product
0.28 NH₃= 0.25 N₂ + 0.03 H₂
2 g H₂ = 22.4 L
so for 0.03 g :