How much heat is required to convert 6.78 g of ice at -12.0°C to water at 30.0 °C? (The heat capacity of ice is 2.09 J/(g. °C). A Hyap (H20) - 40.7 kJ/mol, and AH(H2O) = 6.02 kJ/mol )
Express your answer with the appropriate units.
НА
?
9
Value
Units

calculate how many grams of ammonia can be produced from 4.21 grams of

n2 + 3h2 = 2nh3

my answer:

25.0g n2 x (1 mol/ 28.0gn2) x (2 mol nh3/ 1 mol n2) x (17.0g nh3/ 1 molnh3) = 30.36g n2

25.0g h2 x (1 mol h2/ 2.00g h2) x (2 mol nh3/ 3 mol h2) x (17.0g nh3/ 1 mol nh3) = 141.67g h2

lr = n2

the answer is c i believe