7. The ancient Romans added calcium sulfate to wine to clarify it and to remove dissolved...
7. The ancient Romans added calcium sulfate to wine to clarify it and to remove dissolved lead. What is the maximum [Pb2+] that might be present in wine which is saturated with calcium sulfate?
Homework Answers
As tge solubility of lead sulfate is less than the soluboliso of calcium sulfate,when we add calcium sulfate to wine, the lead present in wine will precipitate. Here first we have to calculate the concentration of (SO4)2- ion,from there we have to calculate the concentration of maximum Pb2+. Solution is given below.
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7. The ancient Romans added calcium sulfate to wine to clarify
it and to remove dissolved...
7. Calcium sulfate (solid) is added to a solution of water to achieve a concentration of...
7. Calcium sulfate (solid) is added to a solution of water to achieve a concentration of 500 mg/L. Find the equilibrium concentration of dissolved sulfate.
A 1.04 g sample of KBr is dissolved in water to give 155 mL of solution....
A 1.04 g sample of KBr is dissolved in water to give 155 mL of solution. This solution is then added to 165 mL of 0.015 M aqueous Pb(NO3)2, in an attempt to remove the toxic lead(II) ions from the solution via precipitation as insoluble PbBr2(s). The precipitation reaction that occurs is: PB2+(aq) + 2Br(aq) --> PbBr2(s) What is the maximum mass of product that could be isolated by filtration after the reaction occurs?
A 1.04 g sample of KBr is dissolved in water to give 155 mL of solution....
A 1.04 g sample of KBr is dissolved in water to give 155 mL of
solution. This solution is then added to 165 mL of 0.015 M aqueous
Pb(NO3)2, in an attempt to remove the toxic lead(II) ions from the
solution via precipitation as insoluble PbBr2(s).
The precipitation reaction that occurs is: Pb2+ (aq) + 2 Br (aq)
---> PbBr2 (s)
At the end of the reaction, what is the concentration (in
molarity) of nitrate ions in the solution?
Note:...
Dibasic calcium phosphate (CaHP0_4) has limited solubility in water with solubility product of K_spCaHPO_4 = 7-23...
Dibasic calcium phosphate (CaHP0_4) has limited solubility in water with solubility product of K_spCaHPO_4 = 7-23 times l0^-7. Taking into account ionic interactions, what will be the concentration of Ca^2+ ions in the solution saturated with CaHP0_4 after 2.5 times l0^-3 m magnesium chloride (MgCh) is dissolved in the same solution? Assume that: MgCl_2 is a strong electrolyte and is very soluble in water; Use the minimal effort calculation sufficient for accurate description. Explain your choice. Ignore possible side reactions...
Please help me with questions 7-12.Thanks Part 1: Observations, Data and Calculations 1. In the table,...
Please help me with questions 7-12.Thanks
Part 1: Observations, Data and Calculations 1. In the table, describe your observations when the different solutes were dissolved in tap water and when vinegar was added into the solution. (2 marks) Table 1: Solubility and reactivity Solute Solubility in water Reactivity with vinegar Baking soda Sugar Salt 2. (1.5 marks) Write a chemical equation to represent what you observed when you added each solute to water. 3. (0.5 mark) Write a chemical equation...
For questions 5-7, use the observations from the experiment to determine the names and formulas of...
For questions 5-7, use the observations from the experiment to determine the names and formulas of various common compounds. 5. A common table salt substitute gives a lavender flame test. It also violds a nitric acid insoluble white precipitate upon the addition of silver nitrate. What are the formula and name of this compound sold salt substitute? Two of the ions in this lab depend on their conversion into a gas for detection. The two ions will forman ionic compound....
Synthesis of Alum (Potassium Aluminum Sulfate) from Aluminum Aluminum cans can be recycled to make potassium...
Synthesis of Alum (Potassium Aluminum Sulfate) from Aluminum Aluminum cans can be recycled to make potassium aluminum sulfate dodecahydrate, KAK(SO)12H20, which is abbreviated to "alum". The 12 waters are part of the overall formula. Alum can be used to make dyes, printing fabrics, making paper, adhesives, pickling of food and vets use it to induce a dog to throw up. x 1 rxn 2 run 3 The following are the four reactions that lead to alum: Al(s) + 2 KOH...
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....
om 4. In the structural features of sw a welch of the following was to distinguish...
om 4. In the structural features of sw a welch of the following was to distinguish reducing monosaccharides freeding disaccharides? (a) Benedict's Test (e) ladine Test (b) Molisch Test (d) Barfoed's Test is indicate 3. In the Seliwanoll's test, a positive result for the presence of ketohexos what color? (a) purple (c) dark reddish brown (b) red-orange (d) greenish-blue 6. Vitamin C is also known as (a) sodium hydroxide (b) sulfuric acid (e) ascorbic acid (d) glucose 7. The oxidation...
Problem Set 7 Stoichiometry Calculations Name: Date: Lab Section: General Instructions: Complete the following problems, Circle...
Problem Set 7 Stoichiometry Calculations Name: Date: Lab Section: General Instructions: Complete the following problems, Circle answers and show all work on separate sheet(s) of paper. 5 problems will be chosen randomly for assessing a score on this assignment. Assignment is due at the end of the lab period. 1.) 5.0 g of magnesium metal is burned in excess oxygen to produce magnesium oxide. (a) Write a balanced chemical equation for this reaction with the correct phases of all substances...
7. Calcium sulfate (solid) is added to a solution of water to achieve a concentration of 500 mg/L. Find the equilibrium concentration of dissolved sulfate.
A 1.04 g sample of KBr is dissolved in water to give 155 mL of
solution. This solution is then added to 165 mL of 0.015 M aqueous
Pb(NO3)2, in an attempt to remove the toxic lead(II) ions from the
solution via precipitation as insoluble PbBr2(s).
The precipitation reaction that occurs is: Pb2+ (aq) + 2 Br (aq)
---> PbBr2 (s)
At the end of the reaction, what is the concentration (in
molarity) of nitrate ions in the solution?
Note:...
Dibasic calcium phosphate (CaHP0_4) has limited solubility in water with solubility product of K_spCaHPO_4 = 7-23 times l0^-7. Taking into account ionic interactions, what will be the concentration of Ca^2+ ions in the solution saturated with CaHP0_4 after 2.5 times l0^-3 m magnesium chloride (MgCh) is dissolved in the same solution? Assume that: MgCl_2 is a strong electrolyte and is very soluble in water; Use the minimal effort calculation sufficient for accurate description. Explain your choice. Ignore possible side reactions...
Please help me with questions 7-12.Thanks
Part 1: Observations, Data and Calculations 1. In the table, describe your observations when the different solutes were dissolved in tap water and when vinegar was added into the solution. (2 marks) Table 1: Solubility and reactivity Solute Solubility in water Reactivity with vinegar Baking soda Sugar Salt 2. (1.5 marks) Write a chemical equation to represent what you observed when you added each solute to water. 3. (0.5 mark) Write a chemical equation...
For questions 5-7, use the observations from the experiment to determine the names and formulas of various common compounds. 5. A common table salt substitute gives a lavender flame test. It also violds a nitric acid insoluble white precipitate upon the addition of silver nitrate. What are the formula and name of this compound sold salt substitute? Two of the ions in this lab depend on their conversion into a gas for detection. The two ions will forman ionic compound....
Synthesis of Alum (Potassium Aluminum Sulfate) from Aluminum Aluminum cans can be recycled to make potassium aluminum sulfate dodecahydrate, KAK(SO)12H20, which is abbreviated to "alum". The 12 waters are part of the overall formula. Alum can be used to make dyes, printing fabrics, making paper, adhesives, pickling of food and vets use it to induce a dog to throw up. x 1 rxn 2 run 3 The following are the four reactions that lead to alum: Al(s) + 2 KOH...
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....
om 4. In the structural features of sw a welch of the following was to distinguish reducing monosaccharides freeding disaccharides? (a) Benedict's Test (e) ladine Test (b) Molisch Test (d) Barfoed's Test is indicate 3. In the Seliwanoll's test, a positive result for the presence of ketohexos what color? (a) purple (c) dark reddish brown (b) red-orange (d) greenish-blue 6. Vitamin C is also known as (a) sodium hydroxide (b) sulfuric acid (e) ascorbic acid (d) glucose 7. The oxidation...
Problem Set 7 Stoichiometry Calculations Name: Date: Lab Section: General Instructions: Complete the following problems, Circle answers and show all work on separate sheet(s) of paper. 5 problems will be chosen randomly for assessing a score on this assignment. Assignment is due at the end of the lab period. 1.) 5.0 g of magnesium metal is burned in excess oxygen to produce magnesium oxide. (a) Write a balanced chemical equation for this reaction with the correct phases of all substances...
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