In the reaction 3Cu(s) + 8HNO₃(aq) → 3Cu(NO₃)₂(aq) + 4H₂O(l) + 2NO(g) 6)3 g of Cu and 100.0 mL of 1.0 M HNO₃ are combined. Which of the following statements is true? A) Cu and HNO₃ react in a 1:1 mole ratio. B) Cu is the limiting reagent, and 0.062 mol HNO₃ does not react. C) 0.080 mol H₂O is produced D) HNO₃ is the limiting reagent, and 0.062 mol Cu does not react. E) Cu and HNO₃ are present in stoichiometric amounts; neither is in excess.

Question

Quizplus · Accepted Answer

The moles of Cu are 0.047 (3g/63.55g/mol), and moles of HNO3 are 0.1 (0.1L * 1M). The reaction requires 8 moles of HNO3 for every 3 moles of Cu, so HNO3 is the limiting reagent.

In the Reaction 3Cu(s) + 8HNO3(aq) → 3Cu(NO3)2(aq) + 4H2O(l) + 2NO(g)

In the Reaction 3Cu(s) + 8HNO₃(aq) → 3Cu(NO₃)₂(aq) + 4H₂O(l) + 2NO(g)