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please do all parts and hurry


Part 1.
7. A pharmacist dissolves 18 g of potassium iodide (KI) in 300 ml of water. How many mEq/L and mosm/L are in the solution? (K

part 2.
8. A pharmacist needs to make 250 ml of a 3%w/g solution of drug P. How many milliliters of water must she add to a 5.5%w.v s

part 3.
9. A pharmacist needs to make 250ml of 5.5%w/v solution of drug P. How many grams of drug P must she add to a 3%w/v stock to
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Answer #1

7)Molecular weight of KI= 166

Number of moles of KI= 18/166=0.1

Number of moles in 0.3 L= 0.1

Number of moles per liter = 0.1/0.3 * 1 = 0.33

Eq/mol conversion = 1

Eq/L = 0.33

Osm/mol conversion= 1

Osm/L = 0.33

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