4. Potassium fluoride has a solubility of 92 g of KF in 100. g of H20 at 18 °C. Determine if each of thefollowing mixtures forms an unsaturated or saturated solution at 18 °C:a. adding 35 g of KF to 25 g of H20b. adding 42 g of KF to 50. g of H20c. adding 145 g of KF to 150. g of H20

Question
Asked Nov 21, 2019
20 views
4. Potassium fluoride has a solubility of 92 g of KF in 100. g of H20 at 18 °C. Determine if each of the
following mixtures forms an unsaturated or saturated solution at 18 °C:
a. adding 35 g of KF to 25 g of H20
b. adding 42 g of KF to 50. g of H20
c. adding 145 g of KF to 150. g of H20
help_outline

Image Transcriptionclose

4. Potassium fluoride has a solubility of 92 g of KF in 100. g of H20 at 18 °C. Determine if each of the following mixtures forms an unsaturated or saturated solution at 18 °C: a. adding 35 g of KF to 25 g of H20 b. adding 42 g of KF to 50. g of H20 c. adding 145 g of KF to 150. g of H20

fullscreen
check_circle

Expert Answer

Step 1

(a) The mixture ‘a’ contains 35 g of potassium fluoride (KF) in 25 g of water (H2O). 35 g of KF is equivalent to 25 g of H2O. The mass of KF present in 100 g of H2O (m) is calculated as shown below. The calculated mass of KF is 140 g in 100 g of H2O. The amount of KF present is more than its solubility. Hence, the mixture ‘a’ is a saturated solution.

help_outline

Image Transcriptionclose

35 g KF -x100 g H2O т: 25 g H2O =140 g KF

fullscreen
Step 2

(b) The mixture ‘b’ contains 42 g of KF in 50 g of H2O. The mass of KF present in 100 g of H2O (m) is calculated as shown below. The calculated mass of KF is 84 ...

help_outline

Image Transcriptionclose

42 g KF <100 g HO 50 g H2O -84 g KF

fullscreen

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in

Science

Chemistry

Related Chemistry Q&A

Find answers to questions asked by student like you
Show more Q&A
add
question_answer

Q: A gaseous compound is 30.4% nitrogen and 69.6% oxygen by mass. A 5.25 g sample of the gas occupies a...

A: Click to see the answer

question_answer

Q: Be sure to answer all parts. When 1 mol of NOg) forms from its elements, 90.29 kJ of heat is absorbe...

A: (a)A balanced chemical equation is an equation which contains same elements in same number on both t...

question_answer

Q: can someone show me the steps for how to solve this problem. I don't know what to do.

A: Convert the unit of pressure to torr as follows,

question_answer

Q: A sodium hydroxide (NaOH) solution is standardized using 1.008 grams of potassium hydrogen phthalate...

A: Given,Mass of potassium hydrogen phthalate = 1.008g.Molar mass of potassium hydrogen phthalate = 204...

question_answer

Q: POST LABORATORY QUESTIONS After Laboratory Homework Part 1 You have assumed your reference metal had...

A: The given EMF values are wrong so here we use the standard electrode potential values and  the EMF o...

question_answer

Q: energy E17D.3(b) The rate constant of a chemical reaction is found to double when the temperature is...

A: The activation energy for a given reaction can be defined as the minimum amount of energy that must ...

question_answer

Q: I don't understand how to solve this question.

A: Organic compounds are the compounds which are mainly composed C and H atoms. The branch of chemistry...

question_answer

Q: A mixture of argon and nitrogen gases, at a total pressure of 965 mm Hg, contains 7.40 grams of argo...

A: According to the Dalton’s law of partial pressures, in a given mixture containing non-reacting gases...

question_answer

Q: Use the information in the picture to write the rate law for this reaction and calculate the value o...

A: Rate Law for the given reaction: