Question

A 2.450×10−2M solution of NaCl in water is at 20.0∘C. The sample was created by dissolving...

A 2.450×10−2M solution of NaCl in water is at 20.0∘C. 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 999.3 mL . The density of water at 20.0∘C is 0.9982 g/mL.

Part A

Calculate the molality of the salt solution.

Part B

Calculate the mole fraction of salt in this solution.

Part C

Calculate the concentration of the salt solution in percent by mass.

Part D

Calculate the concentration of the salt solution in parts per million.

Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A 2.050×10−2M solution of NaCl in water is at 20.0∘C. The sample was created by dissolving...
A 2.050×10−2M solution of NaCl in water is at 20.0∘C. 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 20.0∘C 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...
A 2.650×10?2 M solution of NaCl in water is at 20.0?C. The sample was created by...
A 2.650×10?2 M solution of NaCl in water is at 20.0?C. 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 999.3 mL . The density of water at 20.0?C is 0.9982 g/mL. Part A. Calculate the molality of the salt solution. Part B.Calculate the mole fraction of salt in this solution Part C Calculate the...
A 2.250×10^−2 M solution of NaCl in water is at 20.0∘C. The sample was created by...
A 2.250×10^−2 M solution of NaCl in water is at 20.0∘C. 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 20.0∘C is 0.9982 g/mL. a. Calculate the molality of the salt solution. b. Calculate the mole fraction of salt in this solution. c. Calculate the concentration of...
A 2.650×10−2 M solution of NaCl in water is at 20.0∘C. The sample was created by...
A 2.650×10−2 M solution of NaCl in water is at 20.0∘C. 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 999.3 mL . The density of water at 20.0∘C is 0.9982 g/mL. Calculate the mole fraction of salt in this solution.    Calculate the concentration of the salt solution in percent by mass. Calculate the...
A 2.100×10−2 M solution of NaCl in water is at 20.0∘C. The sample was created by...
A 2.100×10−2 M solution of NaCl in water is at 20.0∘C. 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 20.0∘C 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...
A 2.350×10−2 M solution of NaCl in water is at 20.0∘C. The sample was created by...
A 2.350×10−2 M solution of NaCl in water is at 20.0∘C. 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 20.0∘C is 0.9982 g/mL. Calculate the concentration of the salt solution in percent by mass.
A 0.02350 M solution of NaCl in water is at 20degrees. The sample was created by...
A 0.02350 M solution of NaCl in water is at 20degrees. 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 999.4ml The density of water @20 degrees is 0.9982g/mL. Calculate the morality of the salt solution, the mole fraction of salt in this solution, the concentration of the salt solution in % by mass, &...
1) Use Henry's law to determine the molar solubility of helium at a pressure of 1.9...
1) Use Henry's law to determine the molar solubility of helium at a pressure of 1.9 atm and 25 ∘C. Henry’s law constant for helium gas in water at 25 ∘C is 3.70⋅10−4M/atm. 2) A 2.800×10−2M solution of NaCl in water is at 20.0∘C. 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...
A solution was prepared by dissolving 26.0 g of KCl in 225 g of water. The...
A solution was prepared by dissolving 26.0 g of KCl in 225 g of water. The composition of a solution can be expressed in several different ways. Four of the most common concentration units are defined as follows:. mass %=mass of componenttotal mass of solution×100%; mole fraction (X)=moles of componenttotal moles of solution; molarity (M)=moles of soluteliters of solution; molality (m)=moles of solutemass of solvent (kg) Part A Calculate the mass percent of KCl in the solution. Part B Calculate...
A solution is prepared by dissolving 25.00 g of acetic acid in 750.0 g of water....
A solution is prepared by dissolving 25.00 g of acetic acid in 750.0 g of water. The density of the resulting solution is 1.105 g/ml. How would I calculate the molality, of the solution, the mole fraction of acetic acid in the solution, and what is the concentration of acetic acid in ppm?
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT