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Desperate!!! help!!!!?

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The compound K2SiO 3 • χH2O is a hydrated crystal. It is analyzed for percent water in a procedure similar to the laboratory assignment with barium chloride. An empty evaporating dish was weighed and found to have a mass of 61.57 g. The hydrated crystal was added and the new mass was 63.71 g. The evaporating dish with the sample was heated to remove all water and, after heating, found to have a mass of 62.61 g. What is the correct formula for this hydrated crystal? (MW for K2SiO3 = 154 g/mol and the MW for H2O = 18 g/mol)

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  1. i havent done this in years... what i did was you have 2.14 of hydrated crystal but 1.1 of that is water. so 2.14-1.1 = 1.14 so 1.04/154 = .006 nad 1.1/18 = .06... i divide both by ..006 and get  x = 10??

    i just totally guessed but I hope weather its wrong or not it helps spark your memory on how to do this.

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