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#1
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1.1270 g of potassium oxalate monohydrate (K2C2O4 H2O, FW=184.24) are dissolved in 50 mL of deionized water. the resulting solution is quantitatively transferred to a 100 mL volumetric flask and the flask is filled to volume with deionized water. calculate the molarty of the solution.
how do i do this?????? |
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#2
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1. Calculate the molecular weight of the solute. In this case, you're already told it's 184.24 g/mol.
2. Calculate how many moles of the solute you have. Moles = mass/molecular weight = 1.127 / 184.24 = 0.061170 moles 3. Calculate molarity. Molarity = moles / volume in Liters = 0.061170 / 0.1 = 0.6117 mol / L |
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