can someone actually help me please

Question

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

In the above equation how many moles of water can be made when 36 moles of HNO₃ are consumed?

Question 2: Sodium chlorate decomposes into sodium chloride and oxygen gas as seen in the equation below.

­­2NaClO₃­ --> 2NaCl +3O₂

How many moles of NaCl were produced by 9 moles of NaClO_3­? Round your answer to the nearest whole number.

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

In the above equation how many moles of N₂ can be made when 67 moles of CuO are consumed?

Please give and only give explanation and solution please.

Answer 1

We can use the coefficients in the balanced chemical equation in a mole-to-mole ratio to convert from one substance to a different substance in the equation: 36 mol HNO3 x 4 mol H2O/8 mol HNO3 = 18 mol H2O. Try the next two using the same process. Good luck.