# Problem: Consider 2 Al (s) + 6 HCl (ℓ) → 2 AlCl3 (s) + 3 H2 (g) the reaction of 4.5 mol Al with excess HCl to produce hydrogen gas. What is the pressure of H2(g) if the hydrogen gas collected occupies 14L at 300K? 1. 0.0763 atm 2. 0.233 atm 3. 5.28 atm 4. 7.9 atm 5. 11.9 atm 6. 1.07 atm

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###### Problem Details

Consider 2 Al (s) + 6 HCl (ℓ) → 2 AlCl(s) + 3 H(g) the reaction of 4.5 mol Al with excess HCl to produce hydrogen gas. What is the pressure of H2(g) if the hydrogen gas collected occupies 14L at 300K?

1. 0.0763 atm

2. 0.233 atm

3. 5.28 atm

4. 7.9 atm

5. 11.9 atm

6. 1.07 atm

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Gas Stoichiometry concept. If you need more Gas Stoichiometry practice, you can also practice Gas Stoichiometry practice problems.

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Based on our data, we think this problem is relevant for Professor Fakhreddine's class at TEXAS.