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What would be the resulting molarity of a solution made by dissolving 21.9 grams of KCl in enough water to make an 869-milliliter solution? Show all of the work needed to solve this problem.
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Mar 3, 2017
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What would be the resulting molarity of a solution made by dissolving 21.9 grams of KCl in enough water to make an 869-milliliter solution? Show all of the work needed to solve this problem.
Chemistry
high-school
Karlo Kokkak
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Molar mass KCl = 74.55 g/mol
Volume = 869 mL in liters : 869 / 1000 => 0.869 L
number of moles:
21.9 / 74.55 => 0.293 moles
M = n / V
M = 0.293 / 0.869
M = 0.337 mol/L⁻¹
hope this helps!
Tsotsi
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Mar 9, 2017
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Tsotsi
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