58.5 grams of NaCl is dissolved in 0.5 liters of water, then the molarity of the solution is 2M.
What is molarity?
Molarity of any solution is define as the number of moles of solute present in per liter of solution and it is represented as:
M = n/V, where
V = volume of solution = 0.5 L
n is moles and will be calculated as:
n = W/M, where
W = given mass of NaCl = 58.5g
M = molar mass of NaCl = 58.44 g/mol
n = 58.5/58.44 = 1 mole
Molarity will be represented as:
M = 1/0.5 = 2 M
Hence required molarity of NaCl is 2M.
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