** Please include all steps and explanation, very confused with practice question. EXAM TOMORROW, thank you....
** Please include all steps and explanation, very confused with practice question. EXAM TOMORROW, thank you. (answers included, need work please)
You have 100.00 ml of an saturated solution of SrF2 that is also 0.25M NaF. Ksp =2.5×10–9
a. Write the chemical equation that will be used to determine the equilibrium of this solution.
b. What is the concentration of the common ion at equilibrium?
c. Calculate the molar solubility of the sparingly soluble salt.
a. SrF2(s) ---> Sr2+(aq) + 2F- (aq)
b. 0.25M
c. 4.0x10-8M
Homework Answers
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** Please include all steps and explanation, very confused with
practice question. EXAM TOMORROW, thank you....
need help with all parts of question 2. thank you :) equivalence points and the pH...
need help with all parts of question 2. thank you :)
equivalence points and the pH at the half equivalence points for the three titration regions. Question 2 Part A Given the Ksp = 2.0 x 10-29 for the sparingly soluble salt, calcium phosphate (Ca3(PO4)2), determine the molar solubility of the salt in a solution that is 0.20 M in calcium perchlorate, Ca(C104)2. Part B The cation, Co2+, is able to form a complex ion, (Co(SCN)4] 2-, with the thiocyanate...
please help me with these questions! Thank you :-) What concentration of so-is in equilibrium with...
please help me with these questions! Thank you :-)
What concentration of so-is in equilibrium with Ag,SO,(s) and 1.00 x 10-3 M Agt? The Kap of Ag,SO, can be found in this table. [s03-] = The Ksp of cadmium carbonate, CACO3, is 1.0 x 10-2. Calculate the molar solubility, S, of this compound. At 25 °C, only 0.0290 mol of the generic salt AB2 is soluble in 1.00 L of water. What is the Ksp of the salt at 25...
to answer number 28. you refer back to 24. but im stuck on it ans confused....
to answer number 28. you refer back to 24. but im stuck on it
ans confused.
2NaC1 HOH c. + MgC12 + H2S04> Na2S04+2HCI d. Ca(OH)2+ Pb(NO3)2> Ca(NO3)2 + Pb(OH)2 3 parts) What is the H+ concentration and pH of a 0.20 M solution of hypochlorous acid, Ka 3.5 x 10*? (SHOW ALL STEPS FOR CR CONC. AND SOLVE FOR 22.pH ) 20. ICE CHART, sOLVE FOR 21 23. What is the hydroxide ion concentration and pH of a 0.10...
1-6 please ! Lecture 19 At-home practice Which factor had the effect of decreasing the solubility...
1-6 please !
Lecture 19 At-home practice Which factor had the effect of decreasing the solubility (compared to all the other factors which increase solubility)? 1. A sample of PbSO4 solid has reached equilibrium in a beaker of water. If the ionic strength of the solution is then increased by adding LINO3 salt, what happens to the activity coefficients of the Pb2 and SO,2 ions? What happens to the solubility of the PbSO4? 2. Which of these four salts will...
6 6. Zinc hydroxide, Zn(OH)2. is practically insoluble in pure water. (Kap 3.0 x 10-16) a) Determine the pH of a saturated aqueous solution of Zn(O1H)2. (You should assume that all hydroxide ions...
6 6. Zinc hydroxide, Zn(OH)2. is practically insoluble in pure water. (Kap 3.0 x 10-16) a) Determine the pH of a saturated aqueous solution of Zn(O1H)2. (You should assume that all hydroxide ions in the solution come from the Zn(OH)2: you can ignore the autoionization of water.) (4 pts) b) Zn(OH)2 is less soluble in even very dilute solutions of Zn(NOs)2 due to the common ion effect. Determine the molar solubility of zine hydroxide in a 1.0 x 10-4 M...
help please? this was the only other information given REPORT SHEET Determination of the Solubility-Product Constant...
help please?
this was the only other information given
REPORT SHEET Determination of the Solubility-Product Constant for a Sparingly Soluble Salt EXPERIMENT 8 A. Preparation of a Calibration Curve Initial (Cro121 0.0024 M Absorbance 5 mL Volume of 0.0024 M K Cro Total volume 1. I mL 100 mL 2. 100ML 3. 10 mL 100ml 4. 15 mL 100 ML Molar extinction coefficient for [CrO2) [Cro,2) 2.4x100M 12x1044 2.4810M 3.6810M 0.04) 2037.37 0.85 1.13 2. 3. Average molar extinction coefficient...
can yall help me with all four questions please? Consider these compounds A. MgCO3 B. AgzCO3...
can yall help me with all four questions please?
Consider these compounds A. MgCO3 B. AgzCO3 C. MnS D. MgF2 Complete the following statements by entering the letter(s) corresponding to the correct compound(s). (If more than one compound fits the description, include all the relevant compounds by writing your answer as a string of characters without punctuation, e.g, ABC.) Without doing any calculations it is possible to determine that manganese(Il) carbonate is more soluble than , and manganese(I) carbonate is...
help me out, please! answer all the multiple choice. (15) A phosphate buffer solution is prepared by mixing 100. m...
help me out, please! answer all the multiple
choice.
(15) A phosphate buffer solution is prepared by mixing 100. mL. of 0.300 M KH PO, and 150.ml 0.500 M K HPO (a) Calculate the molar concentrations of H:PO, and that of HPO,2 in the buffer solution. (b) What is the pH of the buffer solution? (H,PO, has K,-6.2 x 10 (c) Write a net ionic equation for the bufering reaction against a strong acid, Hjo (d) Calculate the new concentration...
Please help with solving Question 1 (A-C) Thank you! Unless otherwise specified in the problem, you...
Please help with solving Question 1 (A-C) Thank you!
Unless otherwise specified in the problem, you may assume that all solutions are at 25°C. 1. 50.0 mL of a pH 6.00 carbonic acid buffer is titrated with 0.2857 M NaOH, requiring 17.47 mL to reach the second equivalence point. a. Calculate the molarity of carbonic acid and bicarbonate in the original buffer. Carbonic acid: Bicarbonate: b. Calculate the pH of the solution after a total of 100.0 mL of 0.2857...
need help with all parts of question 2. thank you :)
equivalence points and the pH at the half equivalence points for the three titration regions. Question 2 Part A Given the Ksp = 2.0 x 10-29 for the sparingly soluble salt, calcium phosphate (Ca3(PO4)2), determine the molar solubility of the salt in a solution that is 0.20 M in calcium perchlorate, Ca(C104)2. Part B The cation, Co2+, is able to form a complex ion, (Co(SCN)4] 2-, with the thiocyanate...
please help me with these questions! Thank you :-)
What concentration of so-is in equilibrium with Ag,SO,(s) and 1.00 x 10-3 M Agt? The Kap of Ag,SO, can be found in this table. [s03-] = The Ksp of cadmium carbonate, CACO3, is 1.0 x 10-2. Calculate the molar solubility, S, of this compound. At 25 °C, only 0.0290 mol of the generic salt AB2 is soluble in 1.00 L of water. What is the Ksp of the salt at 25...
to answer number 28. you refer back to 24. but im stuck on it
ans confused.
2NaC1 HOH c. + MgC12 + H2S04> Na2S04+2HCI d. Ca(OH)2+ Pb(NO3)2> Ca(NO3)2 + Pb(OH)2 3 parts) What is the H+ concentration and pH of a 0.20 M solution of hypochlorous acid, Ka 3.5 x 10*? (SHOW ALL STEPS FOR CR CONC. AND SOLVE FOR 22.pH ) 20. ICE CHART, sOLVE FOR 21 23. What is the hydroxide ion concentration and pH of a 0.10...
1-6 please !
Lecture 19 At-home practice Which factor had the effect of decreasing the solubility (compared to all the other factors which increase solubility)? 1. A sample of PbSO4 solid has reached equilibrium in a beaker of water. If the ionic strength of the solution is then increased by adding LINO3 salt, what happens to the activity coefficients of the Pb2 and SO,2 ions? What happens to the solubility of the PbSO4? 2. Which of these four salts will...
6 6. Zinc hydroxide, Zn(OH)2. is practically insoluble in pure water. (Kap 3.0 x 10-16) a) Determine the pH of a saturated aqueous solution of Zn(O1H)2. (You should assume that all hydroxide ions in the solution come from the Zn(OH)2: you can ignore the autoionization of water.) (4 pts) b) Zn(OH)2 is less soluble in even very dilute solutions of Zn(NOs)2 due to the common ion effect. Determine the molar solubility of zine hydroxide in a 1.0 x 10-4 M...
help please?
this was the only other information given
REPORT SHEET Determination of the Solubility-Product Constant for a Sparingly Soluble Salt EXPERIMENT 8 A. Preparation of a Calibration Curve Initial (Cro121 0.0024 M Absorbance 5 mL Volume of 0.0024 M K Cro Total volume 1. I mL 100 mL 2. 100ML 3. 10 mL 100ml 4. 15 mL 100 ML Molar extinction coefficient for [CrO2) [Cro,2) 2.4x100M 12x1044 2.4810M 3.6810M 0.04) 2037.37 0.85 1.13 2. 3. Average molar extinction coefficient...
can yall help me with all four questions please?
Consider these compounds A. MgCO3 B. AgzCO3 C. MnS D. MgF2 Complete the following statements by entering the letter(s) corresponding to the correct compound(s). (If more than one compound fits the description, include all the relevant compounds by writing your answer as a string of characters without punctuation, e.g, ABC.) Without doing any calculations it is possible to determine that manganese(Il) carbonate is more soluble than , and manganese(I) carbonate is...
help me out, please! answer all the multiple
choice.
(15) A phosphate buffer solution is prepared by mixing 100. mL. of 0.300 M KH PO, and 150.ml 0.500 M K HPO (a) Calculate the molar concentrations of H:PO, and that of HPO,2 in the buffer solution. (b) What is the pH of the buffer solution? (H,PO, has K,-6.2 x 10 (c) Write a net ionic equation for the bufering reaction against a strong acid, Hjo (d) Calculate the new concentration...
Please help with solving Question 1 (A-C) Thank you!
Unless otherwise specified in the problem, you may assume that all solutions are at 25°C. 1. 50.0 mL of a pH 6.00 carbonic acid buffer is titrated with 0.2857 M NaOH, requiring 17.47 mL to reach the second equivalence point. a. Calculate the molarity of carbonic acid and bicarbonate in the original buffer. Carbonic acid: Bicarbonate: b. Calculate the pH of the solution after a total of 100.0 mL of 0.2857...
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