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    Evolved Gas

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    Lithium metal reacts with water to yield hydrogen gas. A piece of lithium weighing 10.63 grams was added to 27.57 grams of water. When finished, the solution - containing lithium hydroxide - weighed 34.85 grams. How many grams of hydrogen gas was evolved?

    a. 3.35 grams
    b. 21.2 grams
    c. 1.53 grams
    d. 1.05 grams
    e. 4.766 grams

    © BrainMass Inc. brainmass.com October 9, 2019, 11:49 pm ad1c9bdddf

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    Following the law of conservation of mass, the total mass of ...

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