Question

Ksp = 1.8 x 10-11 for magnesium hydroxide at 25°C. E)Which solvent – 0.10 M KOH,...

Ksp = 1.8 x 10-11 for magnesium hydroxide at 25°C.

E)Which solvent – 0.10 M KOH, 0.10 M Mg(NO3)2, neither, or cannot be determined – has a greater effect on the solubility of magnesium hydroxide? Offer an explanation why.

F)What happens (decrease, increase, no change, or cannot be determined) to the molar concentration of magnesium ion in the solution described in Part b above if some 6.0 M HCl is added to the saturated aqueous solution? Justify your choice.

*the solution described in part B has a concentration of Mg+2=9.0 x 10^-11 M and OH-=1.8 x 10^-10 M.


Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

E)0.1 M Mg(NO3)2 has a greater effect on the solubility of magnesium hydroxide. This is due to common ion effect which is explained below.

When 0.1 M Mg(NO3)2 is added it produces Mg+2 cation and NO3- anion. Now already in the medium there was Mg+2 from Mg(OH)2. So the dissociation of Mg(OH)2 is reduced according to La Chatelier principal.

F) When 6.0 M HCl is added it will react with the OH- generated after the dissociation of Mg(OH)2. So according to La Chatelier principal the reaction will proceed to right side.

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
Determine the molar solubility (in M to two decimal places) of solid cobalt(II) hydroxide(ksp=5.92 x 10^-15)...
Determine the molar solubility (in M to two decimal places) of solid cobalt(II) hydroxide(ksp=5.92 x 10^-15) when dissolved in: a) an aqueous solution containing 0.1 M NaOH. & b) in water (@25 degrees C)
The generic metal hydroxide M(OH)2 has Ksp = 8.25×10−18. (NOTE: In this particular problem, because of...
The generic metal hydroxide M(OH)2 has Ksp = 8.25×10−18. (NOTE: In this particular problem, because of the magnitude of the Ksp and the stoichiometry of the compound, the contribution of OH− from water can be ignored. However, this may not always be the case.) Part A: What is the solubility of M(OH)2 in pure water? Part B: What is the solubility of M(OH)2 in a 0.202 M solution of M(NO3)2?
1. The solubility product, Ksp, for aluminum hydroxide, Al(OH)3, is 1.9 ✕ 10−33 at 25°C. What...
1. The solubility product, Ksp, for aluminum hydroxide, Al(OH)3, is 1.9 ✕ 10−33 at 25°C. What is the molar solubility of aluminum hydroxide in a solution containing 0.061 M KOH at 25°C? Answer in molarity.    2. Complete the following table of data for NaCl. (Assume the density of water is 1.00 g/mL.) T (°C) Solubility (g/100. g) Concentration (M) Ksp ΔG (kJ/mol) 13.0 36.8 25.0 37.1 37.0 37.5 49.0 38.1 61.0 38.7 73.0 39.5 85.0 40.4 Use a graph...
The Ksp of Fe(OH)2 is 1.8 x 10–15. At what pH will a 0.50 M Fe2+...
The Ksp of Fe(OH)2 is 1.8 x 10–15. At what pH will a 0.50 M Fe2+ solution begin to show precipitation of Fe(OH)2? Rank the molar solubility of the following substances in an increasing order. Drag and drop to order 1 A BaF2 (Ksp=2.4 x 10−5) 2 B CaF2 (Ksp=4.0 x 10−11) 3 C PbF2 (Ksp=4 x 10−8)
The generic metal hydroxide M(OH)2 has Ksp = 9.05×10−12. (NOTE: In this particular problem, because of...
The generic metal hydroxide M(OH)2 has Ksp = 9.05×10−12. (NOTE: In this particular problem, because of the magnitude of the Ksp and the stoichiometry of the compound, the contribution of OH− from water can be ignored. However, this may not always be the case.) Part A: What is the solubility of M(OH)2 in pure water? Express your answer with the appropriate units. Part B: What is the solubility of M(OH)2 in a 0.202 M solution of M(NO3)2? Express your answer...
The Ksp of CaF2 at 25 oC is 4 x 10-11. Consider a solution that is...
The Ksp of CaF2 at 25 oC is 4 x 10-11. Consider a solution that is 1.0 x 10-3 M Ca(NO3)2 and 3.0 x 10-4 M NaF.
The generic metal hydroxide M(OH)2 has Ksp = 8.85×10−12. (NOTE: In this particular problem, because of...
The generic metal hydroxide M(OH)2 has Ksp = 8.85×10−12. (NOTE: In this particular problem, because of the magnitude of the Ksp and the stoichiometry of the compound, the contribution ofOH− from water can be ignored. However, this may not always be the case.) Part A What is the solubility of M(OH)2 in pure water? Express your answer with the appropriate units. Hints SubmitMy AnswersGive Up Part B What is the solubility of M(OH)2 in a 0.202 M solution of M(NO3)2?...
1. a) A solution of 1 x 10-8 M KOH (aq) is prepared. What is the...
1. a) A solution of 1 x 10-8 M KOH (aq) is prepared. What is the pH of this solution? b) A phthalate buffer is prepared in which [hydrogen phthalate]= 0.047 M and [phthalic acid] = 0.083 M. If the Ka1 of phthalic acid acid is 1.12 x 10-3, and the Ka2 = 3.91 x 10-6, what is the expected pH of the buffer? c) The pH of a solution formed from a weak monoprotic acid (HA) is 3.1. If...
Silver chloride has Ksp = 1.6 x 10-10 and silver chromate has Ksp = 9.0 x...
Silver chloride has Ksp = 1.6 x 10-10 and silver chromate has Ksp = 9.0 x 10-12. We have 1.00 liter of a solution which contains both NaCl (0.10 M) and Na2CrO4 (0.10 M). Solid AgNO3 is added slowly and the solution is stirred well. a) Which salt precipitates first, AgCl or Ag2CrO4? (Show your work!) b) What are the concentrations of [Ag+], [Cl-], and [CrO42-] at the point when the second salt just begins to precipitate? c) Is this...
an aqueous solution of Ba(OH)2 by pipetting 25.00 mL of 0.0970 M Ba(NO3)2 into an Erlenmeyer...
an aqueous solution of Ba(OH)2 by pipetting 25.00 mL of 0.0970 M Ba(NO3)2 into an Erlenmeyer flask and that contains 25.00 mL of 0.105 M KOH. a) Calculate the molar concentrations of Ba2+(aq) and OH1-(aq) in their 50.00 mL solution. b) Use the molar concentrations of Ba2+(aq) and OH1-(aq) as determined above and the Ksp to show why a precipitate does not form. You must include a calculation as part of your answer. The value of Ksp for Ba(OH)2, is...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT