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Lithium reacts with hydrogen to produce lithium hydride, LiH. Sometimes the product is contaminated with unreacted Li metal. The extent of the contamination can be determined by measuring the amount of H2 gas generated by reacting a sample with water,
A 0.205 g sample of contaminated LiH yielded 561 mL of gas measured over water at 22°C and a total pressure of 731 torr. Calculate the percent by weight of Li metal in the sample. The vapor pressure of water at 22°C is 20 torr.
Please help me......
A 0.205 g sample of contaminated LiH yielded 561 mL of gas measured over water at 22°C and a total pressure of 731 torr. Calculate the percent by weight of Li metal in the sample. The vapor pressure of water at 22°C is 20 torr.
Please help me......
