12.0 g NaHSO4 (MM: 120.1 g/mol) is dissolved in water to make a 2.00 L solution. What is the molarity of the resulting NaHSO4 solution? ___ M Your answer should be rounded to three significant figures. Do not include units in your answer.
Question
12.0 g NaHSO4 (MM: 120.1 g/mol) is dissolved in water to make a 2.00 L solution. What is the molarity of the resulting NaHSO4 solution?
___ M
Your answer should be rounded to three significant figures. Do not include units in your answer.
Solution
To calculate the molarity of the solution, we need to follow these steps:
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Convert the mass of NaHSO4 to moles. We do this by dividing the mass by the molar mass.
Moles of NaHSO4 = 12.0 g / 120.1 g/mol = 0.09992 mol
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Next, we calculate the volume of the solution in liters. In this case, it's already given as 2.00 L.
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Finally, we calculate the molarity (M) by dividing the number of moles of solute by the volume of the solution in liters.
Molarity = 0.09992 mol / 2.00 L = 0.04996 M
Rounding to three significant figures, the molarity of the NaHSO4 solution is 0.0500 M.
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