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Lab Station: Submit this page to your Instructor for grading. Post-lab Questions Use the tabulated information...
Pre-lab Study Questions 1. Write the solubility product Ksp for the following compounds. a. FeS ...
Pre-lab Study Questions 1. Write the solubility product Ksp for the following compounds. a. FeS b. AgNO3 c. Mg(OH)2 d. Ca3(PO4)2 2. Consider a saturated solution of magnesium hydroxide Mg(OH)2. Answer the following questions. a. What would happen to the solubility of Mg(OH)2 if the solution were made up in 0.01 M Mg(NO3)2 instead of pure water? Explain. b. What would happen to the solubility of Mg(OH)2 if the solution were made up in 0.01 M NaOH instead of...
Post-Laboratory Questions (Use the spaces provided for the answers and additional paper if necessary.) mari 1....
Post-Laboratory Questions (Use the spaces provided for the answers and additional paper if necessary.) mari 1. Experience teaches us that most solids are more soluble in warm water than in cold water. Does the solubility of Mg(OH)2 fit this pattern? Briefly explain.
Carboxylic A Report Sheet Date Nov. 8,2019 Section Name Hollis Hunter Team Instructor Pre-Lab Study Questions...
Carboxylic A Report Sheet Date Nov. 8,2019 Section Name Hollis Hunter Team Instructor Pre-Lab Study Questions 1. What are esters? 2. Why are buffers added to some aspirin products? 3. Old aspirin sometimes smells like vinegar. Why? A. Carboxylic Acids and Their Salts Acetic Acid Benzoic Acid A.1 Condensed structural formulas A.2 Solubility in cold water A3
Relative Reactivity of Metals and the Activity Series Post Lab Questions You observed the relative reactivity...
Relative Reactivity of Metals and the Activity Series Post Lab Questions You observed the relative reactivity of the following metals. a. Hg reacts with HNO, but not with HCl, hot or cold water. b. Al reacts slowly with hot (100 °C) water. c. Sr reacts with cold water. d. Cd reacts with HCI but not with hot or cold water. Write the mini-activity series (left to right) for these 4 metals (most active on right), least active most active Indicate...
can someone help me to answer questions # 2 and 3 ? thanks Fall 2019-Spring 2020...
can someone help me to answer questions # 2 and 3 ?
thanks
Fall 2019-Spring 2020 CHE 221/222 Laboratory Pre-Lab Reading 1. Use a solubility table and periodic table to complete the following table: Molar Mass (g/mol) 59.44 469.97 84.9947 143. 32 22.4898 107-868 Substance Is it Soluble in Water? yes YeS Yes NO Chemical Formula Nacl Aq No3 Na. NOs A4CI Nat Agt Cl- NO3- Sodium chloride Silver nitrate Sodium nitrate Silver chloride Sodium cation LS NO Yes yes...
Date Post-Lab Questions If your partner did not take into account the vapor pressure of water whe...
Date Post-Lab Questions If your partner did not take into account the vapor pressure of water when calculating the moles of hydrogen produced, would the mass of Mg that was calculated at the end of the experiment be too high or too low? nced haf t ribbon are coated with white MgO, would this cause the mass of Mg that you calculate to be too high or too low? Why? 3. Instead of a strip of pure Mg nibbon, you...
Dry Lab (use Ksp and Kç values from your text) Which of the following metals will...
Dry Lab (use Ksp and Kç values from your text) Which of the following metals will ppt first following the addition of NaOH? Ba or Ca or 1. (2 pts) Co What is the molar solubility of Ca(OH)2? What is the pH of a saturated Ca(OH)2 solution? 2. (3 pts) In the first qual lab, why did PbCl2 (s) dissolve in hot water, but AgCl (s) did not? Answer in terms of Kp and AHsoly (which is endothermic). 3. (3...
Double Replacement potassium carbonate (aq) + silver nitrate (aq) → potassium nitrate (aq) + silver carbonate...
Double Replacement potassium carbonate (aq) + silver nitrate (aq) → potassium nitrate (aq) + silver carbonate (s) K2CO3(aq) + AgNO, (ag) - potassium carbonate (aq) + copper (II) nitrate (aq) potassium nitrate (aq) + copper (II) carbonate (8) K,CO, (aq) + _Cu(NO, ),(aq) potassium carbonate (aq) + aluminum nitrate (aq) + potassium nitrate (aq) + aluminum carbonate (3) K.CO; (aq) + _Al(NO3) (aq) - sodium phosphate (aq) + silver nitrate (aq) sodium nitrate (aq) + silver phosphate (8) Na, PO...
PO9Recitation HW Complete the following questions in your lab notebook! Use the periodic table of the...
PO9Recitation HW Complete the following questions in your lab notebook! Use the periodic table of the Denniston book for the molar mass calculations (at least 2 decimal places). Part 1. 1. What is the molar mass of Nicotin? (hint: determine the molecular formula first) 2. Based on what you learned in Ch3, what do you predict about nicotine and the solubility in water? 3. Calculate how many grams there are in 0.74 mol Ala(504) 4. The mass of 1.63 x102...
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....
Post-Laboratory Questions (Use the spaces provided for the answers and additional paper if necessary.) mari 1. Experience teaches us that most solids are more soluble in warm water than in cold water. Does the solubility of Mg(OH)2 fit this pattern? Briefly explain.
Carboxylic A Report Sheet Date Nov. 8,2019 Section Name Hollis Hunter Team Instructor Pre-Lab Study Questions 1. What are esters? 2. Why are buffers added to some aspirin products? 3. Old aspirin sometimes smells like vinegar. Why? A. Carboxylic Acids and Their Salts Acetic Acid Benzoic Acid A.1 Condensed structural formulas A.2 Solubility in cold water A3
Relative Reactivity of Metals and the Activity Series Post Lab Questions You observed the relative reactivity of the following metals. a. Hg reacts with HNO, but not with HCl, hot or cold water. b. Al reacts slowly with hot (100 °C) water. c. Sr reacts with cold water. d. Cd reacts with HCI but not with hot or cold water. Write the mini-activity series (left to right) for these 4 metals (most active on right), least active most active Indicate...
can someone help me to answer questions # 2 and 3 ?
thanks
Fall 2019-Spring 2020 CHE 221/222 Laboratory Pre-Lab Reading 1. Use a solubility table and periodic table to complete the following table: Molar Mass (g/mol) 59.44 469.97 84.9947 143. 32 22.4898 107-868 Substance Is it Soluble in Water? yes YeS Yes NO Chemical Formula Nacl Aq No3 Na. NOs A4CI Nat Agt Cl- NO3- Sodium chloride Silver nitrate Sodium nitrate Silver chloride Sodium cation LS NO Yes yes...
Date Post-Lab Questions If your partner did not take into account the vapor pressure of water when calculating the moles of hydrogen produced, would the mass of Mg that was calculated at the end of the experiment be too high or too low? nced haf t ribbon are coated with white MgO, would this cause the mass of Mg that you calculate to be too high or too low? Why? 3. Instead of a strip of pure Mg nibbon, you...
Dry Lab (use Ksp and Kç values from your text) Which of the following metals will ppt first following the addition of NaOH? Ba or Ca or 1. (2 pts) Co What is the molar solubility of Ca(OH)2? What is the pH of a saturated Ca(OH)2 solution? 2. (3 pts) In the first qual lab, why did PbCl2 (s) dissolve in hot water, but AgCl (s) did not? Answer in terms of Kp and AHsoly (which is endothermic). 3. (3...
Double Replacement potassium carbonate (aq) + silver nitrate (aq) → potassium nitrate (aq) + silver carbonate (s) K2CO3(aq) + AgNO, (ag) - potassium carbonate (aq) + copper (II) nitrate (aq) potassium nitrate (aq) + copper (II) carbonate (8) K,CO, (aq) + _Cu(NO, ),(aq) potassium carbonate (aq) + aluminum nitrate (aq) + potassium nitrate (aq) + aluminum carbonate (3) K.CO; (aq) + _Al(NO3) (aq) - sodium phosphate (aq) + silver nitrate (aq) sodium nitrate (aq) + silver phosphate (8) Na, PO...
PO9Recitation HW Complete the following questions in your lab notebook! Use the periodic table of the Denniston book for the molar mass calculations (at least 2 decimal places). Part 1. 1. What is the molar mass of Nicotin? (hint: determine the molecular formula first) 2. Based on what you learned in Ch3, what do you predict about nicotine and the solubility in water? 3. Calculate how many grams there are in 0.74 mol Ala(504) 4. The mass of 1.63 x102...
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....
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