# Percent of Limestone

Chemistry Level pending

4 gram of a mixture of Limestone ($$\ce{CaCO3}$$) and Sand ($$\ce{SiO2}$$) is treated with an excess of $$\ce{HCl}$$ and 0.88 gm of $$\ce{ CO2}$$ is produced. What is the percentage of Limestone in the original mixture?

×