Question

Urgente ...
For the production of 300 kg of sodium phosphate:
a) what the energy amount envolved in the reaction
b)what is the volum of the released gas
c)what the volum of the consumed phosphate acid, considering d=1,69g/ml

Thank so much, for who could help me!

Answer 1

You don't have enough information to answer part a. Do you have delta H formation tables? You could use them.
b. Now that I read the other parts of the problem you don't have an equation, you don't know the gas. What's the equation? What gas are is evolved?

Answer 2

Well, the equation is Na2Co3(s)+H3Po4(s)=>Na3Po4(s)+H2O(l)+CO2(g). I checked this other information. I do really need this big help here guys, please!

Answer 3

Here is a worked example of a stoichiometry problem. Just follow the steps.
http://www.jiskha.com/science/chemistry/limiting_reagent_problem.html