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MgCl2

Mg = 24.30

2Cl = 70.906

FW = 95.21 (Remember SigFigs)

12.5g ÷ 95g of MgCl2 = 0.131 moles of MgCl2

200mL = 0.200 L

0.131 moles of MgCl2 ÷ 0.200 L = 0.656 Molar Concentration

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Molarity (M) represents the moles of a solute per liter of a solvent. In this case, sucrose is the solute and water is the solvent. First, convert your 125g of sucrose to moles...molar mass of sucrose = 342.34 soo you have .365 moles of sucrose. Since you have exactly one L of solution, the molarity of the solution is .365 M Molarity (M) represents the moles of a solute per liter of a solvent. In this case, sucrose is the solute and water is the solvent. First, convert your 125g of sucrose to moles...molar mass of sucrose = 342.34 soo you have .365 moles of sucrose. Since you have exactly one L of solution, the molarity of the solution is .365 M


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