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A solution made by adding 105g of NaCl to 1 kg of water freezes at 20 degrees F (-6.7 degrees Celsius). Calculate the mass of CaCl2 that would lead to the same freezing point depression as 105g of NaCl, when added to 1 kg of water
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An electron is ejected from a metal with a velocity 7.78 x10^5 m/s. If the metal has a threshold frequency of 9.90 x1014 Hz, what was the wavelength of the incident photon?
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How many grams of H2SO4 must be dissolved into 0.709 L of solution to generate a concentration of 0.303 M?
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