Tutor – Empirical Formulas
OWLv2 for General Chemistry
Cengage
01st Edition
An alcohol is %C, %H, and the rest O. Determine the empirical formula.
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An alcohol is %C, %H, and the rest O. Determine the empirical formula.
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Joules are given. Convert to kcal.
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A solution is given where x grams of sugar are dissolved in x grams of water. What is the freezing point? Molar mass of sugar is also given.
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Joules of heat and work are given. You are also told if heat is absorbed or generate and if work is done on the system or by the system. What is ∆E?
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A gas’s Henry’s Law constant and temperature is given. What is the concetration of the gas in g/mL? Total pressure and pressure of water vapor also given.
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Determine if each of the three given compounds are strong electrolytes, weak electrolytes or nonelectrolyte.
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A solution dissolved x grams of a compound to make x mL of solution. What is the molarity of each of the compound and ion species?
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What is the wavelength (in pm) of electrons when a beam of electrons (mass given in kg/electron) is moving at an average speed (given in m/s)?
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A sample has x grams of salt. What is this amount in kilograms (or another SI unit)?
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How many grams are needed to make x mL of an x M solution?
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