Question

A saline solution of KCL is prepared by weighing an empty beaker (mass of beaker is...

A saline solution of KCL is prepared by weighing an empty beaker (mass of beaker is 32.456 grams) and then a beaker with solid KCL (mass of beaker + KCL is 157.458 grams). This solid is mixed with 425.000 grams of water. Calculate the percent by mass of KCL in the solution.

%=mass solute/total mass x 100%

0 0
Add a comment Improve this question Transcribed image text
Know the answer?
Add Answer to:
A saline solution of KCL is prepared by weighing an empty beaker (mass of beaker is...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • A solution was prepared by dissolving 39.0g of KCl in 225 g of water. 1. Calculate...

    A solution was prepared by dissolving 39.0g of KCl in 225 g of water. 1. Calculate the mass percent of KCl in the solution. 2. Calculate the mole fraction of KCl in the solution. 3. Calculate the molarity of KCl in the solution if the total volume of the solution is 239 mL. 4. Calculate the molality of KCl in the solution.

  • Mass of empty 150 mL beaker 83.60g Mass of CuSO45H2O 2.15 Mass of Al 0.25356g Mass...

    Mass of empty 150 mL beaker 83.60g Mass of CuSO45H2O 2.15 Mass of Al 0.25356g Mass of beaker + solid copper 84.10g Mass of solid copper 0.50g 2 Al + 3 CuSO4 ---> 3 Cu + Al2(SO4)3 8.61x10-3 mol of CuSO45H2O used 9.3974x10-3 mol of Al used Theoretical yield in grams of copper is 0.547g 1. Find the percent yield from this reaction.

  • Question 10 The % concentration by mass of a solution prepared by dissolving 9.44 g of...

    Question 10 The % concentration by mass of a solution prepared by dissolving 9.44 g of KF in 85.3 g of solution is: Selected Answer: 11.1% Correct Answer: 11.1% Response Feedback: Correct! Question 11 Select the amount of NaBr, in grams, needed to prepare 325. grams of a 3.62% by mass NaBr solution: Selected Answer: 3.25 grams Correct Answer: 11.8 grams Response Feedback: Incorrect! Percent by mass is the grams of solute dissolved per 100 g of solution: [C# grams...

  • Mass of empty beaker 55.202 g. Mass of beaker plus manganese 55.276 g. Mass of manganese...

    Mass of empty beaker 55.202 g. Mass of beaker plus manganese 55.276 g. Mass of manganese used 0.074 g. Moles of manganese used??? Theoritical yield of manganese (II) chloride (moles) ??? SYNTHESIS B - MANGANESE(II) CHLORIDE Laboratory Report Observations, Data and Calculations 1. (2 marks) Describe your observations of the action of the hydrochloric acid on the manganese. 2. (3 marks) Fill in the data table: mass of empty beaker mass of beaker plus manganese mass of manganese used moles...

  • 1. A 19.6 gram sample of KCl is used to make a 275. mL KCl solution....

    1. A 19.6 gram sample of KCl is used to make a 275. mL KCl solution. What is the molarity of the KCl solution? 2. A chemist has a bottle containing 0.25 M CuCl2. How many milliliters of this solution should the chemist use to add 12.0 grams of CuCl2 to her reaction? 3. In a saturated solution of the ionic compound sodium sulfate, Na3PO4 all of the water molecules are involved in the hydration process. some solid Na3PO4 is...

  • In the lab, you weigh an empty beaker and find it to in empty beaker and find it to be 28.3456 grams. You use a vol...

    In the lab, you weigh an empty beaker and find it to in empty beaker and find it to be 28.3456 grams. You use a volumetric pipet to transfer 50.00 ml of a sodium chloride solution in beaker and weigh the beaker again to get 80.5678 grams. You being careful to turn down the heat near the end of the process minimize the amount of 'popping' that occurs. At the v mount of 'popping' that occurs. At the very end,...

  • what is the mass of solute dissolved in 50.0g of a 12.5% saline solution? 1. What...

    what is the mass of solute dissolved in 50.0g of a 12.5% saline solution? 1. What is the mass of solute that is required to be dissolved in 50.0 g of water to make 12.5% saline solution?

  • 1. preparing and mixing the reactants mass of weighing boat and CuSO4*5h2O, g : 2.66g Mass...

    1. preparing and mixing the reactants mass of weighing boat and CuSO4*5h2O, g : 2.66g Mass of weighing boat, g: .66g mass of CuSO4*5h2O,g: 2.00g Molarity of ammonia solution, M: ???? in this part we added 2.00g of CuSO4*5h2O, and added 6.4mL of water. we then heated the mixture and added 6.45mL of NH3. after it was done heating, 8.3mL of room temp ethanol was added. we then made an ice water bath, and put the beaker in the ice...

  • The mass of a solute versus the volume of a solution is known as mass/volume percent....

    The mass of a solute versus the volume of a solution is known as mass/volume percent. It is a unit for concentration (g/L x 100%) often used in medicine, particularly with intravenous (IV) bags. If the mass percent of the saline is 0.9%, how many grams of “salt” are in a 1 L saline IV solution? Show your calculations. Retain all units where appropriate in your calculations. [HINT: 1% is the same as 1 gram in 100ml.]

  • 35) Calculate the concentration of a KCl solution prepared by adding 200 mL of water to...

    35) Calculate the concentration of a KCl solution prepared by adding 200 mL of water to 100. mL of 12% KCl solution.

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT