In this activity you will be “given” a 100.0 mL sample of contaminated water containing metal ions (NiCl2).
You will precipitate out the metal ion chosen using an excess of concentrated solution of the chosen ‘reactant solution’ (Na2CO3).
Using the yield of precipitate from the measurements in the video (0.41g) , you will be able to determine the concentration of your assigned metal ion in the water sample.
Answers: 2
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Sodium sulfate dissolves as follows: na2so4(s) → 2na+(aq) + so42- (aq). how many moles of na2so4 are required to make 1.0 l of solution in which the na concentration is 0.10 m?
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The molality of calcium chloride (cacl2) in an aqueous solution is 2.46 m. what is mole fraction of the solute?
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Ascientist measures the speed of sound in a monatomic gas to be 449 m/s at 20∘c. what is the molar mass of this gas?
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In this activity you will be “given” a 100.0 mL sample of contaminated water containing metal ions (...
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