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b. Remembering that aluminum is protected from corrosion by a thin film of Al 0s, explain...
explain please *Question 266: Thin Film Two pieces of glass are held together in such way...
explain please
*Question 266: Thin Film Two pieces of glass are held together in such way that the air space between them forms a very thin wedge. Light of wavelength 469 nm strikes the upper surface perpendicularly and is reflected from the lower surface of the top glass and the upper surface of the bottom glass, thereby producing a series of interference fringes. How much thicker is the air wedge at the sixteenth fringe than it is at the sixth?...
Part B: Difference between Strong and Weak Acids Write net ionic equations for the reaction of HC...
Part B: Difference between Strong and Weak Acids Write net ionic equations for the reaction of HCI with Zn and HCl with CaCOs. Compare and explain the chemical behavior of 6 M HCI versus 6M HC2H302 when reacted with either Zn or CaCOs. Use concentration of H as part of the explanation. Page 70 APPLICATION OF PRINCIPLES 1. Using the Electrolyte Table and the Solubility Table, write the formulas of the principle species present when the following are mixed with...
B. The following questions are from today's experiment: EQUL 307: pH, Acids, and Bases Use the...
B. The following questions are from today's experiment: EQUL 307: pH, Acids, and Bases Use the table to answer your questions: 0.1 M solution Methyl orange Methyl Violet Phenolphthalein Thymolphthalein pH range 3.1 to 4.4 0.5 to 2.0 8.0 to 9.B 9.3 to 10.5 Color change red to yellow yellow to violet colorless to red colorless to blue yellow light pink colorless NaNO, кон violet violet yellow red blue 1. Is a 0.1 M solution of KOH acidic or basic?...
Please help me with 6a calculations Experimental Procedure, Part A.6 versus Part B.2. Would you expect more or...
Please help me with 6a calculations
Experimental Procedure, Part A.6 versus Part B.2. Would you expect more or less standard 0.05 M HCI to be used to reach the methyl orange endpoint in Part B.2? Explain. A determination of the molar solubility and the K_sp calcium hydroxide was completed according to the experimental procedure. The following data were collected for Trial 1. (See Report Sheet.) Complete the table for the determinations. Record the calculated values to the correct number of...
Experiment 7 Preparation of Alum PURPOSE oF EXPERIMENT: Prepare KAI(So,)2 12H20, an aluminum alum...
CHEM 101 LAB 7 PRELAB QUESTIONS B C AND D
Experiment 7 Preparation of Alum PURPOSE oF EXPERIMENT: Prepare KAI(So,)2 12H20, an aluminum alum, from aluminum metal. (Note: ExPERIMENT 8 describes the gravimetric analysis of the sulfate content in alum.) Alums have the general formula MM(So) 12HO, where M* is commonly Na". K', Tl., NH,., or Ag, and Mt''is A广, Fe". Cr". Ti". or Co. . Samples of these compounds have a variety of uses in our everyday lives. Sodium...
1. In which solution will aluminum hydroxide, Al(OH)3, be least soluble? The solutions are similar except...
1. In which solution will aluminum hydroxide, Al(OH)3, be least soluble? The solutions are similar except that they have the following pH values: Hint: Common ion effect. Which two ions dictate acidity and basicity? a. 3 b. 7 c. 9 d. 11 2. Potassium perchlorate has a solubility product constant of 10-2. Which is true about the following solution of KClO4: [K+] = 0.01 M, [ClO4 −] = 0.01 M a. Ksp < Q and no precipitation occurs b....
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...
Questions I a) What is osmosis? b) What is dialysis? Can MgSO4 pass through? Explain. 2....
Questions I a) What is osmosis? b) What is dialysis? Can MgSO4 pass through? Explain. 2. Can starch pass through a dialyzing membrane? (Support your claim with evidence from the experiment.) 3. Explain why people who are adrift in a lifeboat without a supply of fresh water are advised not to drink ocean water. note - Ocean water is saltier than body fluids like blood plasma. 4. In terms of osmosis, what happens when fresh water is inhaled into a...
please help me solve this ANAL 364-Qualitatitive Analysis Discussion Topics b) You did not wash the...
please help me solve this
ANAL 364-Qualitatitive Analysis Discussion Topics b) You did not wash the filter paper with hot water before filtering in the step used to separate PbCl2 from AgCLand Hg.Cl 5. AIPO4, with a Kg of 9.8 x 1022 is less soluble than Cas(PO4)2, which has a Kp of 2.0 x 1029 Why? 6. Would the solubility of AlIPO, with a Kp of 9.8 x 102 or Cas(POa), which has a Kp of 2.0x 10-9 be affected...
Food and beverage containers are commonly made of tin, steel, aluminum, or a combination of metals....
Food and beverage containers are commonly made of tin, steel, aluminum, or a combination of metals. Suppose that a laboratory procedure requires a can be made of aluminum. Which property can be used to determine if a can is likely to be made of aluminum? O color Odensity volume mass What is the density of a pear that occupies 32 cm and has a mass of 42 g O 0.7619 g-cm 0 2.0 g.cm O 1.3125 g-cm O 0.76 g.cm...
explain please
*Question 266: Thin Film Two pieces of glass are held together in such way that the air space between them forms a very thin wedge. Light of wavelength 469 nm strikes the upper surface perpendicularly and is reflected from the lower surface of the top glass and the upper surface of the bottom glass, thereby producing a series of interference fringes. How much thicker is the air wedge at the sixteenth fringe than it is at the sixth?...
Part B: Difference between Strong and Weak Acids Write net ionic equations for the reaction of HCI with Zn and HCl with CaCOs. Compare and explain the chemical behavior of 6 M HCI versus 6M HC2H302 when reacted with either Zn or CaCOs. Use concentration of H as part of the explanation. Page 70 APPLICATION OF PRINCIPLES 1. Using the Electrolyte Table and the Solubility Table, write the formulas of the principle species present when the following are mixed with...
B. The following questions are from today's experiment: EQUL 307: pH, Acids, and Bases Use the table to answer your questions: 0.1 M solution Methyl orange Methyl Violet Phenolphthalein Thymolphthalein pH range 3.1 to 4.4 0.5 to 2.0 8.0 to 9.B 9.3 to 10.5 Color change red to yellow yellow to violet colorless to red colorless to blue yellow light pink colorless NaNO, кон violet violet yellow red blue 1. Is a 0.1 M solution of KOH acidic or basic?...
Please help me with 6a calculations
Experimental Procedure, Part A.6 versus Part B.2. Would you expect more or less standard 0.05 M HCI to be used to reach the methyl orange endpoint in Part B.2? Explain. A determination of the molar solubility and the K_sp calcium hydroxide was completed according to the experimental procedure. The following data were collected for Trial 1. (See Report Sheet.) Complete the table for the determinations. Record the calculated values to the correct number of...
CHEM 101 LAB 7 PRELAB QUESTIONS B C AND D
Experiment 7 Preparation of Alum PURPOSE oF EXPERIMENT: Prepare KAI(So,)2 12H20, an aluminum alum, from aluminum metal. (Note: ExPERIMENT 8 describes the gravimetric analysis of the sulfate content in alum.) Alums have the general formula MM(So) 12HO, where M* is commonly Na". K', Tl., NH,., or Ag, and Mt''is A广, Fe". Cr". Ti". or Co. . Samples of these compounds have a variety of uses in our everyday lives. Sodium...
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...
Questions I a) What is osmosis? b) What is dialysis? Can MgSO4 pass through? Explain. 2. Can starch pass through a dialyzing membrane? (Support your claim with evidence from the experiment.) 3. Explain why people who are adrift in a lifeboat without a supply of fresh water are advised not to drink ocean water. note - Ocean water is saltier than body fluids like blood plasma. 4. In terms of osmosis, what happens when fresh water is inhaled into a...
please help me solve this
ANAL 364-Qualitatitive Analysis Discussion Topics b) You did not wash the filter paper with hot water before filtering in the step used to separate PbCl2 from AgCLand Hg.Cl 5. AIPO4, with a Kg of 9.8 x 1022 is less soluble than Cas(PO4)2, which has a Kp of 2.0 x 1029 Why? 6. Would the solubility of AlIPO, with a Kp of 9.8 x 102 or Cas(POa), which has a Kp of 2.0x 10-9 be affected...
Food and beverage containers are commonly made of tin, steel, aluminum, or a combination of metals. Suppose that a laboratory procedure requires a can be made of aluminum. Which property can be used to determine if a can is likely to be made of aluminum? O color Odensity volume mass What is the density of a pear that occupies 32 cm and has a mass of 42 g O 0.7619 g-cm 0 2.0 g.cm O 1.3125 g-cm O 0.76 g.cm...
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