can someone please actually help me please

Question

Question 1: 3 Cu  +   8HNO₃   g 3 Cu(NO₃)₂   +  2 NO  +  4  H₂O

In the above equation how many moles of NO can be made when 60 moles of HNO₃ are consumed?



Question 2: 2 NH₃  +  3 CuO   g  3 Cu  +  N₂  +   3 H₂O

In the above equation how many moles of water can be made when 79 moles of NH₃ are consumed?

Question 3: S   +   6 HNO₃  -->  H₂SO₄  +  6 NO₂  +   2 H₂O

In the above equation how many moles of water can be made when 47 moles of HNO₃ are consumed?

Please give and only give explanation and solution please

Answer 1

Question 1: 3 Cu  +   8HNO₃   g 3 Cu(NO₃)₂   +  2 NO  +  4  H₂O

In the above equation how many moles of NO can be made when 60 moles of HNO₃ are consumed?

Use the mole ratios between NO and HNO3 2:8

Solve for moles of NO by using the ratio

moles of NO = 60 moles NHO₃ x (2 moles NO / 8 moles NHO₃) = 15 moles of NO

Question 2: 2 NH₃  +  3 CuO   g  3 Cu  +  N₂  +   3 H₂O

In the above equation how many moles of water can be made when 79 moles of NH₃ are consumed?

Use the mole ratios between water and NH₃ 3:2

Solve for moles of water by using the ratio

moles of water = 79 moles NH₃ x (3 moles H₂O / 2 moles NH₃) = 118.5 moles of H₂O

Solve question #3 the same