The compound calcium cyanamide (CaNCN) is used as a nitrogen source for crops. To obtain this compound, calcium carbide is reacted with nitrogen at high temperatures. CaC2 (s) + N2 (g) CaNCN (s) + C (s) What mass of CaNCN can be produced if 7.45 mol CaC2 reacts with 5.85 mol N2?

Question

Audrina Noble

Chemistry

16 December, 08:12

The compound calcium cyanamide (CaNCN) is used as a nitrogen source for crops. To obtain this compound, calcium carbide is reacted with nitrogen at high temperatures. CaC2 (s) + N2 (g) CaNCN (s) + C (s) What mass of CaNCN can be produced if 7.45 mol CaC2 reacts with 5.85 mol N2?

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Answers (1)

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Danielle Galvan · Answer 1

N2 + CaC2 = CaNCN + C

As you can see, 1 mol of N2 can react completely with 1 mol of CaC2 and 1 mol of CaNCN will be obtained

It means 5 mol of N2 can react completely with 5 mol of CaC2 and 5 mol of CaNCN will be obtained

So, there are 7.5 - 5 = 2.5 odd mole of CaC2 after the reaction

And the mass of obtained CaNCN is

m = n*M = 5*80 = 400g