Question

For the balanced chemical reaction

2H2 + O2 → 2H₂O
how many grams of water can be made by reacting 3.41 moles of O₂? Express your answer to three significant figures.

Answer 1

Step-by-step explanation:

3.41 x 2 moles of water = 6.82

6.82 x molar mass of water (18 grams) = 122.76

122.76 in 3 sigfigs = 123