I just need to know the formulas in order to solve the following questions because my teacher gave me a review on everything but I don't know the formulas at all. I know how to solve the questions though. I did them before but I just need the formulas in order to solve them... I forgot them.

The questions are:

Hi I need to know how to solve this problem in order for me to study for my exam. Thanks

4)Black gunpower stored in a barrel has been ignited and 1245g of KNO3 (s) are formed in the exploding mixture. What will the total volume be of all gases produced in this explosive at a temp. Of 350 degrees Celsius and a pressure of 2000 kPa?
KNO3 (s) + C(s) + S8 (s) --> N2(g) + CO2(g) + K2S8 (s)

Thanks

I guess you didn't understand the answer to your other two questions. Please do your own work and post it. Someone will come along and explain.

That's AMHD policy.

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