The calcium content of an unknown can be measured using a gravimetric method of analysis that involves homogeneous preci

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The calcium content of an unknown can be measured using a gravimetric method of analysis that involves homogeneous preci

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The Calcium Content Of An Unknown Can Be Measured Using A Gravimetric Method Of Analysis That Involves Homogeneous Preci 1
The Calcium Content Of An Unknown Can Be Measured Using A Gravimetric Method Of Analysis That Involves Homogeneous Preci 1 (25.66 KiB) Viewed 42 times
The calcium content of an unknown can be measured using a gravimetric method of analysis that involves homogeneous precipitation. The calcium content can be measure via formation of CaC204.H20 precipitates. However, precipitates tend to carry down other constituents normally soluble from the solution, causing the precipitate to become contaminated. (a) What will happen to the accuracy of the calcium determination? (2 marks) (b) Describe three ways the samples can be contaminated by a foreign material during the precipitation process and how to avoid them. (8 marks)
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