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March 2, 2015

Homework Help: Chemistry

Posted by TT on Thursday, December 9, 2010 at 10:41pm.

OK I just need help with two final problems that I am stuck on:

The problem states the calcium carbonate in limestone reacts with HCl to produce a calcium chloride solution and carbon dioxide gas
CaCO3(s)+2HCl(aq)-->CaCl2(aq)+H2O(l)+CO2(g)

1)Find how many moles of CO2 form when 12.5mL of 3.00 M HCl react?


2)What is the molarity of a HCl solution if the reaction of 205 mL of the HCl sloution with excess CaCO3 produces 13.5 L of CO2 gas at 725 mmHg and 18 degrees C?

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