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  1. W

    Have no idea how to solve this chemistry problem?

    Determine the molar solubility of copper(II) cromate in a 0.75 M copper(II) chloride solution.(The Ksp of copper(II) cromate is 2.87*10^-8). I have no idea how to solve this problem!!!
  2. W

    Need help on a chemistry question?

    A fossil was analyzed and determined to have a carbon-14 level that is 60.0 that of living organisms. How old is the fossil? C-14 has a half life is 5730. Can someone show how to set this up to get t(time)???
  3. W

    Can someone please help with this chemistry problem?

    Assuming the density of water is 1.00 g/ml . Calculate the amount of KBr needed to to lower the freezing point of 495 ml of water by 1.40 degrees celcius
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