Multiple Choice
Calcium hydride (CaH2) reacts with water to form hydrogen gas: CaH2 (s) + 2H2O (l) → Ca(OH) 2 (aq) + 2H2 (g)
How many grams of CaH2 are needed to generate 48.0 L of H2 gas at a pressure of 0.995 atm and a temperature of 32 °C?
A) 56.8
B) 0.954
C) 161
D) 40.1
E) 80.3
Correct Answer:
Verified
Correct Answer:
Verified
Related Questions
Q52: In a gas mixture of He, Ne,
Q55: The molecular weight of a gas that
Q58: A pressure of 0.500 atm is the
Q58: At 333 K, which of the pairs
Q62: A fixed amount of gas at 25.0
Q73: According to the kinetic-molecular theory,molecules of different
Q118: A sample of a gas originally at
Q132: Sodium hydride reacts with excess water to
Q142: The volume of a sample of gas
Q144: Ammonium nitrite undergoes thermal decomposition to produce