September 18, 2021, 06:31:50 AM
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Topic: Determining Solution Molarity  (Read 151 times)

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Offline FionaLove16

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Determining Solution Molarity
« on: September 13, 2021, 04:54:40 PM »
Question I'm working on asks me to find M of an 25.0 mL NaOH if 25.4 mL of a 0.350 mol L-1 H2SO4 solution is completely reacted.

Worked through the problem by determining the mols of H2SO4 (.00889) and dividing it in 2 to get the mols of NaOH (.00445) in the solution since its a 1:2 ratio.

Then did mols NaOH (.00445)/solution volume (0.0250) to get Molarity: 0.1778 M

However this is a multiple choice question and the answer I got isn't listed. I also tried to solve by combing the two volumes at first, but that also gets me an answer that isn't listed (.08830 M)

Did I go wrong somewhere in my process?

Answer options given for context:
0.711 mol L-1
111 mol L-1
0.689 mol L-1
0.356 mol L-1
0.344 mol L-1

Offline mjc123

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Re: Determining Solution Molarity
« Reply #1 on: September 13, 2021, 05:29:27 PM »
Why did you divide by 2? What is the balanced equation for the reaction?

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