A 2.850Ã10^â2 M solution of NaCl in water is at 20.0âC. The sample was created by dissolving a sample of NaCl in water and then bringing the volume up to 1.000 L. It was determined that the volume of water needed to do this was 999.2 mL . The density of water at 20.0âC is 0.9982 g/mL.
Calculate the molality of the salt solution.
Express your answer to four significant figures and include the appropriate units.
A 2.850Ã10^â2 M solution of NaCl in water is at 20.0âC. The sample was created by dissolving a sample of NaCl in water and then bringing the volume up to 1.000 L. It was determined that the volume of water needed to do this was 999.2 mL . The density of water at 20.0âC is 0.9982 g/mL.
Calculate the molality of the salt solution.
Express your answer to four significant figures and include the appropriate units.
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Related questions
A 2.900Ã10â2M solution of NaCl in water is at 20.0âC. The sample was created by dissolving a sample of NaCl in water and then bringing the volume up to 1.000 L. It was determined that the volume of water needed to do this was 999.2 mL . The density of water at 20.0âC is 0.9982 g/mL.
Part A
Calculate the molality of the salt solution.
Express your answer to four significant figures and include the appropriate units.
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| mNaCl = | 5M | |||||
Use either an integer, decimal number, or scientific notation for the numeric portion of your answer. Do not use calculations or functions.
Part B
Calculate the mole fraction of salt in this solution.
Express the mole fraction to four significant figures.
View Available Hint(s)
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| ÏNaCl = |
Part C
Calculate the concentration of the salt solution in percent by mass.
Express your answer to four significant figures and include the appropriate units.
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| percent by mass NaCl = |
Submit
Part D
Calculate the concentration of the salt solution in parts per million.
Express your answer as an integer to four significant figures and include the appropriate units.
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| parts per million NaCl = |
