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(Solved): 1. A solution is prepared by dissolving 4.87 g of sodium dichromate in 25.0 mL of water (d= 1.00 g/ ...


1. A solution is prepared by dissolving 4.87 g of sodium dichromate in 25.0 mL of

water (d= 1.00 g/mL). Calculate
a. the mass % of water in the solution.
b. the concentration in ppm.
 


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ANSWERS As the density of water is 1.0 g/mL the mass of water will be gigñven by the density and the volume used: Density= mass/volume Mass water= Density. volume Mass water= (25 mL)(1.0 g/mL)= 25 g And the total mass of
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