# Chemistry

posted by .

How much heat is absorbed/released when 35.00 g of NH3(g) reacts in the presence of excess O2(g) to produce NO(g) and H2O(l) according to the following chemical equation?

4NH3(g)+5O2(g)--->4NO(g)+6H2O(l)

DeltaH=1168kj

• Chemistry -

i got 601.1 are released is that right?

• Chemistry -

Is that 1168 kJ/mole or 1168 kJ/reaction?
And is the problem not telling whether it is absorbed/released on purpose?

• Chemistry -

yeah it just says rleased/absorbed i guess that's what they want you to find out im not sure what you mean by 1168 kJ/mole or 1168 kJ/reaction?

• Chemistry -

Is that 1168 kJ for the reaction (4 moles NH3 or 68 grams) or kJ/mol (for 17 grams).

• Chemistry -

Yes, 601 kJ is right and it is released; i.e., the 1168 is -1168 kJ for the reaction as written.
1168 x (35.0/68) = 601 kJ released or delta H = -601 kJ.

## Respond to this Question

 First Name School Subject Your Answer

## Similar Questions

1. ### Chemistry

(1)Aluminum reacts with oxygen to produce aluminum oxide according to the following reaction: 4Al(s) + 3O2(g) → 2Al2O3(s) Calculate the moles of Al2O3 produced when the reaction is performed with 31.06 g of each reactant. (2)Nitrogen …
2. ### Chemistry

How many liters of nitrogen oxide at STP are produced from the reaction of 59.g of NH3?
3. ### Chemistry

How much heat is absorbed/released when 20.00 g of NH2 reacts in the presence of excess O2 to produce NO and H2O according to the following chemical equation: 4NH3 + 5O2 --> 4NO + 6H2O, deltaH= +1168 kJ. The answer is 342.9 kJ of …
4. ### stoichiometry

in an attempt to to provide a means of generation of NO cheaply, gaseous NH3 is burned with 20% excess oxygen according to the equation 4NH3+5O2=4NO+6H2O The reaction is 70% complete. the NO is separated from the unreacted NH3, and …
5. ### chemistry

A chemist mixes 96.8 g of ammonia, NH3, with 188 L of O2 at STP. How many grams of NO will be produced?
6. ### Chemistry

How much water would be formed if 3.00 mol NH3 reacted with excess oxygen gas in the following equation?
7. ### chemistry

how many moles of NH3 does it take to make 8.0 mol of H20 according to the reaction shown below?
8. ### college chemistry

how many L @STP if oxygen are needed to produce 45.0 grams of nitric oxide according to the following balanced chemical equation?
9. ### Chemisty

In an experiment, 6.25 g of NH3 are allowed to react with 8.50 g of O2. The chemical equation for the reaction is 4NH3 + 5O2 → 4NO + 6 H2O. How many grams of water are produced?
10. ### Science

Ammonia may be oxidised to nitrogen monoxide in the presence of a catalyst according to the following equation. 4NH3 +5O2-4NO+6H2O.If 27 litres of reactants are consumed ,what volume of nitrogen monoxide is produced at the same temperature …

More Similar Questions