1.When a 8.192g sample of bluish-green crystals of hydrated nickel(II)sulfate is

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1.When a 8.192g sample of bluish-green crystals of hydrated nickel(II)sulfate is heated, all of the water of hydration is lost leaving 4.826g of anhydrous nickel(II)sulfate. Write the formula of the hydrated crystal, showing the number of moles of water bound per mole of salt. 2. The formula of Epsom salts is MgSO4x7H2O. If 1.250g of the compound is dissolved in water, calculate the number of milliliters of 0.200 M Ba(NO3)2 that would be required to just precipitate all the sulfate as barium sulfate. Please show me all the work. Thank you.

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Q1) see this link well explained with images http://www.tutorvista.com/content/chemis

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