To calculate ΔH of reaction, let's use the following formula
ΔH of reaction= [ΔH of products] - [ΔH of reactants]
note: keep in mind that you have to multiply each value by its coefficient.
ΔH of reaction= [ ΔH CO2 + ΔH H2O + ΔH Na2CO3] - [ΔH NaHCO3]
ΔH of reaction = [ -393.5 + -241.8 + -1130.9] - [ 2 x -947.7]
ΔH of reaction= 129.2 kJ
since ΔH is positive, the reaction is endothermic
Answer:
D. 0.36 g
Explanation:
When a gas is collected over water, the total pressure is the sum of the pressure of the gas and the pressure of the water vapor.
Ptotal = Pwater + PN₂
PN₂ = Ptotal - Pwater = 730 torr - 23.76 torr = 706 torr
We can find the mass of N₂ using the ideal gas equation.
The answer would be the letter c...
Answer:
5.32 × 1017 nanometers
Explanation:
5.32 x (10^10) centimeters =
5.32 × 1017 nanometers
Answer:
Hope this helps you!
Explanation:
Include big outside heaters and inside heaters to maintain warm
Also wear special clothes to keep body warmth