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# Problem involving Stoichiometry and the Ideal Gas Law

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From the data given in the attachment, determine the following: moles of H2(g) produced, moles of HCl(aq) reacted, the balanced chemical reaction, and the value of "y" in Mcl_y(a)

See attached file for data.

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https://brainmass.com/chemistry/gas-stoichiometry/problem-involving-stoichiometry-ideal-gas-law-57224

#### Solution Preview

IMPORTANT POINT: WHEN CONFRONTED WITH A LENGTHY PROBLEM, JUST TACKLE IT ONE STEP AT A TIME. EVEN IF YOU DON'T KNOW HOW TO GET THE ANSWER AT THE BEGINNING, JUST START DOING WHAT YOU CAN DO.

I'LL SHOW YOU HOW.

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Step 1: Determine the moles of NaOH reacted

(2.4862 mol/L)(0.02750 L) = 0.06837 mol NaOH

According to the titration, this is the amount of NaOH that reacted with the leftover HCl. Therefore, it equals the moles of HCl leftover

Step 2: Determine the moles of HCl that we started with

(1.5222 mol/L)(0.12000 L) = 0.18266 ...

#### Solution Summary

This solution involves step by step calculations with explanations for finding moles or molecules in a chemical reaction.

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