Physical Chemistry Answers

2 NH₃  +  3 CuO → 3 Cu  +  N₂  +   3 H₂O

In the above equation, how many grams of N₂ can be made when 18.4 moles 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.:

3 Cu  +   8HNO₃ → 3 Cu(NO₃)₂   +  2 NO  +  4  H₂O

In the above equation, how many grams of water can be made when 3.5 moles of HNO₃ 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.:

S   +   6 HNO₃ →  H₂SO₄  +  6 NO₂  +   2 H₂O

In the above equation, how many grams of water can be made when 12.6 moles of HNO₃ 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.:

For the reaction C + 2H₂ → CH₄, how many grams of hydrogen are required to produce 1.6 moles of methane, CH₄ ?

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.:

2 NH₃  +  3 CuO → 3 Cu  +  N₂  +   3 H₂O

In the above equation, how many grams of N₂ can be made when 4.4 moles 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.:

3 Cu  +   8HNO₃ → 3 Cu(NO₃)₂   +  2 NO  +  4  H₂O

In the above equation, how many grams of water can be made when 18.5 moles of HNO₃ 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.:

S   +   6 HNO₃ →  H₂SO₄  +  6 NO₂  +   2 H₂O

In the above equation, how many grams of water can be made when 17.2 moles of HNO₃ are consumed?

Round your answer to the nearest tenth. If your 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.:

For the reaction C + 2H₂ → CH₄, how many grams of hydrogen are required to produce 2.2 moles of methane, CH₄?

Round your answer to the nearest tenth. If your 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.:

2 NH₃  +  3 CuO → 3 Cu  +  N₂  +   3 H₂O

In the above equation, how many grams of N₂ can be made when 6.9 moles of CuO are consumed?

Round your answer to the nearest tenth. If your 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.:

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 74 moles of HNO₃ are consumed?