2. How many moles of nitrogen are in a 2145 mL sample of the gas at 1500. torr and 120 °C? 3. Chlorine reacts with sulfite ion in the presence of water to give sulfate ion and chloride ion How many milliliters of CI, gas measured at 25 °C and 734 torr are required to react with all the S0,2 in 34.9 mL of 0.253 M Na, SO, solution? The chemical equation is the following: Cl2+ SO2+ H,O 2Cl +SO2+H* 4 3 Carbon dioxide can be generated by the reaction of hydrochloric acid with calcium carbonate. How many milliliters of dry CO, at 20.0 °C and 755 torr can be prepared from a mixture of 32.1 g of CaCO, and 203 mL of 0.245 M HCI?

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Introduction to chemistry

Chemistry is a branch of science that deals with the analysis of material and the substances that comprise it. It also manages the properties of these substances and their reactions to form new substances. It is basically centered on particles and atoms that make up components and mixtures. These chemical species will in general connect using bonds.