Question

Find the molarity of the following: A. Dissolve 5.00g of NaCl in enough water to make...

Find the molarity of the following:

A. Dissolve 5.00g of NaCl in enough water to make 500ml of solution. (M.WT of Nacl = 58,45g/mol)

B. If 0.435g of a drug if dissolved in enough water to give 750ml of solution, what is the molarity of the drug in solution? (M.WT = 158.0g/mol)

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Answer #1

Molarity = Moles of Solute Volume of solution (L) - moles o solute = mass eg) - molar mass (almol) (Nael) 5.00g 58.949 Imol 0B. Molanity = mass of solute Molar mass almol) volume in solution (2) Molarity = 0.4359 + 158.0g (mol 0.750 an Molarity 79€ 0

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