Question

. AT&T 8:47 PM 67% Exit 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? O 0.080 mol H2O is produced O Cu and HNO3 are present in stoichiometric amounts; neither is in excess. O Cu is the limiting reagent, and 0.062 mol HNO3 does not react. O HNO3 is the limiting reagent, and 0.062 mol Cu does not react. Cu and HNO3 react in a 1:1 mole ratio.

Answer 1

SOLH 3Cuis) +8HNO2laq) -7 30(1103) (09.) + 4H2011) - +2N019) . 6.3 g of ai and 100.0m2 of 1.om uno, care combined moles of Cu= mass e 6.3 = 0.1 mole molan muss. 63 moles of NQ = mokerity & volume in e __2 0.1 more limiting teagurt = one having less moles stochto. coese - - Thiog_01 Hence; lno is limiling reagent. from & mole of HNO3 = 3 mole of a reacts Hence, moles of cu left 20.1-0.183 20.125 mole = 0.062 moles of ce dougnot __reach. lence option code HNO3 is limiting reagent & 0.062 mole of cu dog not react is correct answer

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