A-LevelChemistryAtoms, molecules and stoichiometry9701/12 · Oct/Nov 2016 · Q41 Mark
When copper reacts with a 50% solution of nitric acid, nitrogen monoxide is evolved and a blue solution results. The balanced equation for this reaction is shown. pCu + qHNO₃ → rCu(NO₃)₂ + sH₂O + tNO What are the values of the integers p, q, r, s and t?
Ap=1, q=4, r=1, s=2, t=2
Bp=2, q=6, r=2, s=3, t=2
Cp=2, q=8, r=2, s=4, t=4
Dp=3, q=8, r=3, s=4, t=2
✓ Correct answer
D: p=3, q=8, r=3, s=4, t=2
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