Question

2 NH3 + 3 CuO --> 3 Cu + N2 + 3 H2O

In the above equation how many moles of N2 can be made when 135.5 grams of CuO are consumed?

Round your answer to the nearest tenth. If you answer is a whole number like 4, report the answer as 4.0

Use the following molar masses. If you do not use these masses, the computer will mark your answer incorrect.:

Element

Molar Mass

Hydrogen

1

Nitrogen

14

Copper

63.5

Oxygen

16

Answer 1

140 grams of N2 are made.

Step-by-step explanation:

15 mol CuO x (1 mol N2 / 3 mol CuO) = 5 moles of N2.

5 mol N2 x (28 g N2 / 1 mol N2) = 140 grams of N2.

140 grams of N2 are made.