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A 2.500-g sample of a mixture of sodium carbonate and sodium chloride is dissolved in 25.00 mL of 0.798 M HCl. Some acid remains after the treatment of the sample.
a. Write the net ionic equation for the complete reaction of sodium carbonate with hydrochloric acid.
b. If 28.7 mL of 0.108 M NaOH were required to titrate the excess hydrochloric acid, how many moles of sodium carbonate were present in the original sample?
c. What is the percent composition of the original sample?
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