Assume a substance has a

  1. Substance X raises the boiling point of 150g of water to 101.3 C. What is the molecular mass of substance X? (assume x does not
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  2. Let y(t) denote the mass of a radioactive substance at time t.t. Suppose this substance obeys the equationy′(t)=−14y(t).
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  3. Suppose 1.0 mol of substance A reacts with 1.0 mol of substance B. to produce 2.0 mol of substance C. In a reaction, 2.4 mol of
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  4. Assume that a reaction occurs in which unknown substances R and S react to form unknown substances T and U. From the information
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  5. Assume the half-life of a substance is 31 days and the initial amount is 172.799999999996 grams.When will the substance be
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  6. Substance A and substance B are mixed together. To separate the mixture, water is added, and substance A is filtered out. Then,
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  7. Substance A and substance B are mixed together. To separate the mixture, water is added, and substance A is filtered out. Then,
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  8. Substance A and substance B are mixed together. To separate the mixture, water is added, and substance A is filtered out. Then,
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  9. Substance A and substance B are mixed together. To separate the mixture, water is added, and substance A is filtered out. Then,
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  10. Substance A and substance B are mixed together. To separate the mixture, water is added, and substance A is filtered out. Then,
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