Answer to Question #90972 in Inorganic Chemistry for Agou Alier

Question #90972
What is the pressure in kilopascals in a 35.0 L balloon at 25 °C filled with pure hydrogen
gas produced by the reaction of 34.11 g of CaH2 with water?
1
Expert's answer
2019-06-21T08:46:17-0400

Solution: CaH2 + 2H2O = Ca(OH)2 + H2

From one mol of CaH2 you get 1 mol H2. The amount of CaH2 is 34.11/42.08=0.81 mol, and it equals to the amount of hydrogen. 25 °C is 25+273.15=298.15 °K. The preasure in the baloone can be calculated by the ideal gas law: P=nRT/V, so P=0.81*8.314*298.15/35.0=57.37 kPa.

Answer: 57.37 kPa.

Need a fast expert's response?

Submit order

and get a quick answer at the best price

for any assignment or question with DETAILED EXPLANATIONS!

Comments

No comments. Be the first!

Leave a comment

Ask Your question

LATEST TUTORIALS
New on Blog
APPROVED BY CLIENTS