Homework Help: Chemistry

Posted by Terry on Wednesday, December 5, 2012 at 9:17pm.

If 1 antacid tab neutralizes 6.84 mmol of HCL (36.46 g/mol). How many tabs are needed to neutralize 125 mL of stomach acid. Assume [H3O+] = 0.10 mmol/mL.
I have no idea where to go with this. Any formula would help

Chemistry - DrBob222, Wednesday, December 5, 2012 at 9:30pm
How much acid do you have in 125 mL of 01M acid? That's 125 mL x 0.1M = 12.5 mmols.
6.84 mmols/tab x # tablets = 12.5 mmols.
Solve for # tablets
Chemistry - Terry, Wednesday, December 5, 2012 at 9:36pm
Thanks so much. I had come up with 12.5 mmols, but didn't know what to do with it.

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