Homework Answers
Ans 3
Concentration of NaBr = 0.05 M
The dissociation reaction of NaBr
NaBr = Na+ + Br-
Concentration of Br- = 0.05 M
In this solution PbBr2 is mixed
The dissociation reaction of PbBr2
PbBr2 = Pb2+ + 2Br-
Concentration of Br- = 2*0.05 = 0.10 M
Concentration of Pb2+ = 0.10 M
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3. What is the concentration of Pb if PbBrais placed in a 0.05M solution of NaBr?...
PbBr2: 6.6*10^-6 3. What is the concentration of Pb if PbBris placed in a 0.05M solution...
PbBr2: 6.6*10^-6
3. What is the concentration of Pb if PbBris placed in a 0.05M solution of NaBr? (You may assume no complexes are formed.) 4. Write all necessary equations (Ka, Kb MB etc etc) needed to determine exactly the [H'] of a 0.05M solution of Ca(HCOO): (calcium formate). (Calcium formate is completely soluble in water and you can assume no Ca(OH)2 is formed. ) Ignore activites
3. What is the concentration of Pbl if PbBr is placed in a 0.05M solution of...
3. What is the concentration of Pbl if PbBr is placed in a 0.05M solution of NaBr? [You may assume no complexes are formed.) Write all necessary equations (Ka, Kb MB etc etc) needed to determine exactly the [H') of a 0.05M solution of Ca(HCOO)2 (calcium formate). (Calcium formate is completely soluble in water and you can assume no Ca(OH)2 is formed. ) Ignore activites
4. Write all necessary equations (Ka, Kb MB etc etc) needed to determine exactly the [H]...
4. Write all necessary equations (Ka, Kb MB etc etc) needed to determine exactly the [H] of a 0.05M solution of Ca(HCOO)2 (calcium formatel. (Calcium formate is completely soluble in water and you can assume no Ca(OH)2 is formed.) Ignore activites
pbbrzis placed in a 0.05M solution of NaBr? (You may 3. What is the concentration of...
pbbrzis placed in a 0.05M solution of NaBr? (You may 3. What is the concentration of Pbif PbBT assume no complexes are formed.)
#5 Write the solubility product expression for PbCl2. Using the concentration for the Pb+2 and Cl-...
#5 Write the solubility product expression for PbCl2.
Using the concentration for the Pb+2 and Cl- ions, solve for your
experimental Ksp.
#6 Using your book, find the theoretical Ksp for PbCl2
to determine your percent error
A Solubility Product Constant Introduction: Many substances are very soluble in water. However, in this experiment you will be concerned with substances that are insoluble or only slightly soluble. Dynamic equilibrium is established when an excess of a slightly soluble substance is placed...
in some cases, there may be a mixture of two or more acids. When this happens,...
in some cases, there may be a mixture of two or more acids. When this happens, the stronger acid will dissociate completely, so you should be able to calculate how much H,0 is in solution as a result. Writing out the equation for the dissociation often helps The weak acid will attempt to dissociate and is governed by the equilibrium (K,). You should write out the equation for the weak acid Now-write in the values for the concentrations that you'll...
If solid Mg(OH)2 were placed in a solution with an [OH-] concentration of 1.0x10^-3 M, what...
If solid Mg(OH)2 were placed in a solution with an [OH-] concentration of 1.0x10^-3 M, what would be the molar solubility of Mg(OH)2 in the solution? (Note: Use the Ksp value 5.6x10^-15.) Please write all steps in a detailed fashion so that I may fully comprehend the process. Thank you. :)
Question 69? What volume of 0.175 M Na_3PO_4 solution is completely react with 95 4 ml...
Question 69?
What volume of 0.175 M Na_3PO_4 solution is completely react with 95 4 ml of 0.102 M CuCl_2? Consider the reaction Li_2S(aq) + Co(NO_3)_29aq) rightarrow 2 LiNO_3 (aq) + CoS(s) What volume of 0.150 M Li_2 S solution is required to completely react with 125 mL of 0.150 M Co(NO_3)_2? What is the minimum amount of 6.0 M H_2SO_4. necessary to produce 25.0 g of H_2 (g) according to the reaction between aluminum and sulfuric acid? 2 Al...
4.30. Using solubility rules, predict the solubility in water of the following ionic compounds. a. AI(OH) b. CaN...
4.30. Using solubility rules, predict the solubility in water of the following ionic compounds. a. AI(OH) b. CaN C. NH4CI d. KOH 4.32. Using solubility rules, decide whether the following ionic solids are soluble or insoluble in water. If they are soluble, write the chemical equation for dissolving in water and indicate what ions you would expect to be present in solution. (NE SO b. BaCO c. Pb(NOs)2 d. Ca(OH) 4.34. Write net ionic equations for the following molecular equations....
b. How would you prepare 225.0 mL of 1.33 M HCl from a 6.00 M stock solution? C. When 25.00 mL of 0.695 M HCl reacts...
b. How would you prepare 225.0 mL of 1.33 M HCl from a 6.00 M stock solution? C. When 25.00 mL of 0.695 M HCl reacts with an excess of silver nitrate, will a precipitate form? Write the net ionic equation for this reaction. How many grams of precipitate can be theoretically obtained? d. What volume of 0.2500 M strontium hydroxide is required to completely react with 75.00 mL of 0.07942 M HCI? e. When 37.5 mL of 0.439 M...
PbBr2: 6.6*10^-6
3. What is the concentration of Pb if PbBris placed in a 0.05M solution of NaBr? (You may assume no complexes are formed.) 4. Write all necessary equations (Ka, Kb MB etc etc) needed to determine exactly the [H'] of a 0.05M solution of Ca(HCOO): (calcium formate). (Calcium formate is completely soluble in water and you can assume no Ca(OH)2 is formed. ) Ignore activites
3. What is the concentration of Pbl if PbBr is placed in a 0.05M solution of NaBr? [You may assume no complexes are formed.) Write all necessary equations (Ka, Kb MB etc etc) needed to determine exactly the [H') of a 0.05M solution of Ca(HCOO)2 (calcium formate). (Calcium formate is completely soluble in water and you can assume no Ca(OH)2 is formed. ) Ignore activites
4. Write all necessary equations (Ka, Kb MB etc etc) needed to determine exactly the [H] of a 0.05M solution of Ca(HCOO)2 (calcium formatel. (Calcium formate is completely soluble in water and you can assume no Ca(OH)2 is formed.) Ignore activites
pbbrzis placed in a 0.05M solution of NaBr? (You may 3. What is the concentration of Pbif PbBT assume no complexes are formed.)
#5 Write the solubility product expression for PbCl2.
Using the concentration for the Pb+2 and Cl- ions, solve for your
experimental Ksp.
#6 Using your book, find the theoretical Ksp for PbCl2
to determine your percent error
A Solubility Product Constant Introduction: Many substances are very soluble in water. However, in this experiment you will be concerned with substances that are insoluble or only slightly soluble. Dynamic equilibrium is established when an excess of a slightly soluble substance is placed...
in some cases, there may be a mixture of two or more acids. When this happens, the stronger acid will dissociate completely, so you should be able to calculate how much H,0 is in solution as a result. Writing out the equation for the dissociation often helps The weak acid will attempt to dissociate and is governed by the equilibrium (K,). You should write out the equation for the weak acid Now-write in the values for the concentrations that you'll...
Question 69?
What volume of 0.175 M Na_3PO_4 solution is completely react with 95 4 ml of 0.102 M CuCl_2? Consider the reaction Li_2S(aq) + Co(NO_3)_29aq) rightarrow 2 LiNO_3 (aq) + CoS(s) What volume of 0.150 M Li_2 S solution is required to completely react with 125 mL of 0.150 M Co(NO_3)_2? What is the minimum amount of 6.0 M H_2SO_4. necessary to produce 25.0 g of H_2 (g) according to the reaction between aluminum and sulfuric acid? 2 Al...
4.30. Using solubility rules, predict the solubility in water of the following ionic compounds. a. AI(OH) b. CaN C. NH4CI d. KOH 4.32. Using solubility rules, decide whether the following ionic solids are soluble or insoluble in water. If they are soluble, write the chemical equation for dissolving in water and indicate what ions you would expect to be present in solution. (NE SO b. BaCO c. Pb(NOs)2 d. Ca(OH) 4.34. Write net ionic equations for the following molecular equations....
b. How would you prepare 225.0 mL of 1.33 M HCl from a 6.00 M stock solution? C. When 25.00 mL of 0.695 M HCl reacts with an excess of silver nitrate, will a precipitate form? Write the net ionic equation for this reaction. How many grams of precipitate can be theoretically obtained? d. What volume of 0.2500 M strontium hydroxide is required to completely react with 75.00 mL of 0.07942 M HCI? e. When 37.5 mL of 0.439 M...
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