# Chemistry

posted by .

How much heat is evolved when 6.688 moles of Cu(s) is burned in excess oxygen

• Chemistry -

Cu(s) + O2(g) ==> Cu2O(s)
Look up the heat of formation of Cu2O. That will be the heat evolved (or absorbed) depending upon the sign of delta H. The number you look up is J/mol (or kJ/mol). Multiply that by 6.888.

## Similar Questions

1. ### chemistry

how much heat will be released if 30 grams of octane is burned in excess oxygen?
2. ### chemistry

How much heat will be released if 30 g of octane is burned in excess of oxygen?
3. ### Chemistry

Consider the following reaction: CH4 +2O2 -> CO2 + 2H2O. Delta H = -891 kJ Calculate the enthalpy change for each of the following cases: a. 1.00 g methane is burned in excess oxygen b. 1.00 x 10^3 L methane gas at 740. torr and …
4. ### chemistry

If 7.00g of CH2 is burned in excess Oxygen, what number of moles is formed with H2O
5. ### Chemistry

When 0.340 mol of butane, C4H10, are burned with excess oxygen giving CO2 and H2O, how many moles of oxygen are consumed?
6. ### Chem

2H2(g)+O2(g) ---> 2H2O(l) delta H= -572kJ/mole of O2 Calculate the amount of heat evolved when 10g of hydrogen are burned in excess oxygen.
7. ### Chem

2H2(g)+O2(g) ---> 2H2O(l) delta H= -572kJ/mole of O2 Calculate the amount of heat evolved when 10g of hydrogen are burned in excess oxygen. Can someone please explain step by step?
8. ### chemistry

Consider the following reaction: 2H2 (g) + O2 (g)  2H2O (l) ΔH = -572 kJ a. How much heat is evolved for the production of 1.00 mol H2O (l)?
9. ### Chemistry

How much heat will be released when 0.750 moles of carbon monoxide (CO) react in an excess of oxygen gas?
10. ### chemistry

7.20 moles of C3H8 are burned in a room with excess oxygen gas. How many moles of carbon dioxide are released into the atmosphere during this process ?

More Similar Questions