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- Consider a mixture of potassium chloride and potassium nitrate that is 43.2% potassium by mass. What is the percent KCl by mass of the original mixture?1.39 mol Nal is used in a reaction. What is the mass of Nal present?A major component of gasoline is octane. When octane is burned in air, it chemically reacts with oxygen gas to produce carbon dioxide and water . What mass of water is produced by the reaction of 7.2 g of oxygen gas?
- Convert 1.252 moles of sodium chloride into grams.A chemist measures the amount of nitrogen gas produced during an experiment. She finds that 4.05 g of nitrogen gas is produced. Calculate the number of moles of nitrogen gas produced.What conversion factor would you use to convert 72.9 g Cl to moles of Cl?
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