Question

Use the balanced reaction provided to answer the following question: H _2SO _4+ 2 Na OH→ Na _2sO_4+2H_2O

If you have 4 moles of NaOH, how many moles of water ( H_2O) can you make?
a) 2 moles
b) 4 moles
c) 6 moles
d) 8 moles

Answer 1

Using the stoichiometric relationship in the balanced chemical equation, 4 moles of NaOH will react to produce 4 moles of water. Hence, the correct answer is 4 moles of water.

Step-by-step explanation:

To determine the number of moles of water (H2O) that can be made from 4 moles of NaOH, we first review the balanced chemical equation:

H2SO4 (aq) + 2NaOH(aq) → Na2SO4 (aq) + 2H2O(l)

The equation tells us that 2 moles of NaOH react with sulfuric acid to produce 2 moles of water. Therefore, if we have 4 moles of NaOH, we can produce twice the amount of water, so that would be 4 moles of water. Following this stoichiometric relationship, we can see that the correct answer is (b) 4 moles of water.