posted by Avery .
Write the equilibrium expression, and calculate Kp for the reaction under the conditions described:
2NaHCO3 (s) --> <--- Na2CO3 (s) + H2O (g) + CO2 (g)
100 g of solid NaHCO3 was placed in a previously evacuated rigid 5.00 L container and heated to 160 degrees C. Some of the original solid remained and the total pressure in the container was 7.76 atm when equilibrium was reached.
The answer is 15.1, I need to find how to get it, and how to write the expression.
Answer is posted below at an earlier post.