Problem: Aqueous sulfuric acid (H2SO4) will react with solid sodium hydroxide (NaOH) to produce aqueous sodium sulfate (Na2SO4) and liquid water (H2O). Suppose 93 g of sulfuric acid is mixed with 128 g of sodium hydroxide. Calculate the maximum mass of water that could be produced by the chemical reaction. Round your answer to 2 significant digits.

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FREE Expert Solution

We’re being asked to calculate the maximum mass of water that will be formed in the reaction. 


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

Step 1: Write and balance a chemical equation for the given reaction.

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



Step 1: From the problem, the given chemical reaction is:

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


This equation is not yet balanced. To balance it, we have to make sure that the number of elements on both sides is equal.


Balance Na: We have 1 Na on the reactant side and 2 Na on the product side – add a coefficient of 2 to NaOH:

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


Balance H: We have 4 H on the reactant side and 2 H on the product side – add a coefficient of 2 to H2O:

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

*This also balances the number of O. The number of S is already balanced.


Now that we have a balanced equation, we can determine how much H2O is produced.


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Problem Details

Aqueous sulfuric acid (H2SO4) will react with solid sodium hydroxide (NaOH) to produce aqueous sodium sulfate (Na2SO4) and liquid water (H2O). Suppose 93 g of sulfuric acid is mixed with 128 g of sodium hydroxide. Calculate the maximum mass of water that could be produced by the chemical reaction. Round your answer to 2 significant digits.


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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.

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