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8. Suppose that you are given a solution of 1.25 mol/L sodium chloride in water, Na Claq) How much of the 1.25 mol/L sodium chloride solution must be added to water in order to prepare a 50.0 mL of 1.00 mol/L Na Claq)?9. Hydrogen cyanide gas, HCN(g), is used to prepare clear, hard plastics, such as Plexiglas. Hydrogen cyanide is formed by reacting ammonia, NH3, with oxygen and methane, CH4, according to the following equation:2N H3(9) + 302(9) + 2CH4(9) 2HCN (g) + 6H20 (s)a. How many moles ci O2 are needed to react with 1.2 mol of N H3?b. How many moles of H2O can be expected from the reaction

          8. Suppose that you are given a solution of 1.25 mol/L sodium chloride in water, Na Claq)  How much of the 1.25 mol/L sodium chloride solution must be added to water in order to prepare a 50.0 mL of 1.00 mol/L Na Claq)?9. Hydrogen cyanide gas, HCN(g), is used to prepare clear, hard plastics, such as Plexiglas. Hydrogen cyanide is formed by reacting ammonia, NH3, with oxygen and methane, CH4, according to the following equation:2N H3(9) + 302(9) + 2CH4(9)  2HCN (g) + 6H20 (s)a. How many moles ci O2 are needed to react with 1.2 mol of N H3?b. How many moles of H2O can be expected from the reaction

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