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When you have 8.66 x 1020 formula units of NiCl2 how many total moles of ions are released when each what samples dissolves completely in water?
Wiki User
∙ 9y ago
8.66 x 10^20 formula units NiCl2 x (1 mol NiCl2 / 6.022x10^23 # atoms NiCl2) x (3 mol Ni and Cl2 / 1 mol NiCl2) = 4.31 x 10^-3 moles of ions
Wiki User
∙ 9y ago
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When you have 3.86 g of CuSO4 - 5H2O how many total moles of ions are released when each of the following samples dissolves completely in water?
CuSO4.5H2Omass 3.86 gmolar mass: 249.70 g/mol3.86 g / 249.70 g/mol = 1.546*10-2 mol CuSO4.Each mole CuSO4.5H2O will dissociate in 1 mole Cu2+ and 1 mole SO42-, giving total of 2 moles ions.So 1.546*10-2 mol CuSO4 * 2 = 3.09*10-2 mole ions
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To prepare geological samples (or other big samples) for chemical analysis.
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When you have 0.43 mol of NH4Cl how many total moles of ions are released when each of the following samples dissolves completely in water Show work so I can understand how to do it on my own?
Basically you have 0.43 mol of NH4Cl. In NH4Cl there are two ions, NH+ and Cl-. You set up the problem as: 0.43 mol of NH4Cl X (2 mol ions/ 1 mol of NH4Cl) = 0.86 mol ions
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This Is Your Life - 1971 Junior Samples was released on: USA: 13 May 1971
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