Problem: A potential fuel for rockets is a combination of B 5H9 and O 2. The two react according to the following balanced equation:2 B5H9 (l) + 12 O 2 (g) → 5 B 2O3 (s) + 9 H2O (g)If one tank in a rocket holds 126 g B  5H9 and another tank holds 192 g O 2, what mass of water can be produced when the entire contents of each tank react together?

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We’re being asked to determine the mass of water that can be produced when the entire contents of each tank react together. We are given the following balanced equation:


2 B5H9 (l) + 12 O2 (g) 5 B2O3 (s) + 9 H2O (g)



For this problem, we need to do the following steps:

Step 1: Determine moles of reactant

Step 2: Determine the limiting reactant and calculate the moles of H2O formed.

Step 3: Calculate the mass of water


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Problem Details

A potential fuel for rockets is a combination of B 5H9 and O 2. The two react according to the following balanced equation:

2 B5H9 (l) + 12 O 2 (g) → 5 B 2O3 (s) + 9 H2O (g)

If one tank in a rocket holds 126 g B  5H9 and another tank holds 192 g O 2, what mass of water can be produced when the entire contents of each tank react together?

Frequently Asked Questions

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 Limiting Reagent concept. You can view video lessons to learn Limiting Reagent. Or if you need more Limiting Reagent practice, you can also practice Limiting Reagent practice problems.

What professor is this problem relevant for?

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

What textbook is this problem found in?

Our data indicates that this problem or a close variation was asked in Chemistry: An Atoms First Approach - Zumdahl Atoms 1st 2nd Edition. You can also practice Chemistry: An Atoms First Approach - Zumdahl Atoms 1st 2nd Edition practice problems.