A 2.100Ã10â2 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 999.4 mL . The density of water at 20.0âC is 0.9982 g/mL.
A) Calculate the molality of the salt solution. Express your answer to four significant figures and include the appropriate units.
B) Calculate the mole fraction of salt in this solution. Express the mole fraction to four significant figures.
C) Calculate the concentration of the salt solution in percent by mass. Express your answer to four significant figures and include the appropriate units.
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.
A 2.100Ã10â2 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 999.4 mL . The density of water at 20.0âC is 0.9982 g/mL.
A) Calculate the molality of the salt solution. Express your answer to four significant figures and include the appropriate units.
B) Calculate the mole fraction of salt in this solution. Express the mole fraction to four significant figures.
C) Calculate the concentration of the salt solution in percent by mass. Express your answer to four significant figures and include the appropriate units.
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.
Related textbook solutions
Basic Chemistry
Principles of Chemistry Molecular Approach
Chemistry: Structure and Properties
Principles of Chemistry Molecular Approach
Chemistry: A Molecular Approach
Chemistry: A Molecular Approach
Principles of Chemistry: A Molecular Approach
Chemistry: The Central Science
Related questions
A 2.050Ã10â2M 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 999.4 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.
Part B
Calculate the mole fraction of salt in this solution.
Express the mole fraction to four significant figures.
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.
|
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.
| |
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.
| ||||||
| 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)
| | |||
| 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.
| | |||
| 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.
| | |||
| parts per million NaCl = |
