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0.2/1 POINTS EARNED 21 A solution is made by dissolving 29.9 g of CH3NH3NO3 in 500.0...
6 A solution is made by dissolving 35.5 g of Ba(NO2)2 in 500.0 mL of water....
6 A solution is made by dissolving 35.5 g of Ba(NO2)2 in 500.0 mL of water. Does Ba2+ have any acidic or basic properties? a O of 2 points earned 20 attempts remaining Does NO, have any acidic or basic properties? O of 2 points earned 20 attempts remaining Write the basic equilibrium equation that exists in solution с O of 2 points earned 20 attempts remaining What is the value of Kb for NO2-? The Ka of HNO2 is...
e. using kb(NO2-)=2.2x10^-11, determine the pH of the solution 19 A solution is made by dissolving...
e. using kb(NO2-)=2.2x10^-11, determine the pH of the
solution
19 A solution is made by dissolving 44.9 g of Ba(NO2)2 in 500.0 mL of water. a Does Ba2+ have any acidic or basic properties? O of 0.2 points earned b Does NO, have any acidic or basic properties? O of 0.2 points earned C As NO, is a base, write the basic equilibrium equation that exists in solution O of 0.2 points earned d What is the value of Kb...
The pOH of a basic solution is 5.47. What is [OH-]? 0 of 1 point earned...
The pOH of a basic solution is 5.47. What is [OH-]? 0 of 1 point earned 2 attempts remaining The pH of a basic solution is 9.91. What is POH? 9 O of 1 point earned 2 attempts remaining The pOH of a basic solution is 2.79. What is [H-1? 10 L 0 of 1 point earned 2 attempts remaining The pH of a solution is 3.42 What is the OH solution? concentration in the 11 0 of 1 point...
QUESTION 31 A solution was made by dissolving 26.5g of Na2CO3 in 500.0 mL of water....
QUESTION 31 A solution was made by dissolving 26.5g of Na2CO3 in 500.0 mL of water. What is the molality of this solution? (1.0g of water -1.0 ml of water) 11 Na23.6C128016 OA 0.25 m OB. 0.25 M OC 0.5M OD 0.5 m E. None of above QUESTION 32 Molarity (M) of a solution varies with O A Pressure O Temperature OC Partial pressure D. Both A and B OE. Both A and C QUESTION 33 Which of the following...
A 500.0±0.2-mL solution was prepared by dissolving 25.00±0.03 mL of methanol (CH3OH, density=0.7914±0.0002 g/mL, molecular mass=32.0419±0.0009...
A 500.0±0.2-mL solution was prepared by dissolving 25.00±0.03 mL of methanol (CH3OH, density=0.7914±0.0002 g/mL, molecular mass=32.0419±0.0009 g/mol) in chloroform. Find the molarity ± uncertainty of the methanol.
Question 15-17 The pH of a basic solution is 11.53. What is [HE]? 15 х O...
Question 15-17
The pH of a basic solution is 11.53. What is [HE]? 15 х O of 1 point earned 2 attempts remaining The pH of a basic solution is 10.97. What is [OH-]? 16 L O of 1 point earned 3 attempts remaining The pOH of an acidic solution is 11.11. What is [H-]? 17 O of 1 point earned 3 attempts remaining >
A 25.0 ml solution of HNO3 is neutralized with 28.5 mL of 0.250 M Ba(OH)2. What...
A 25.0 ml solution of HNO3 is neutralized with 28.5 mL of 0.250 M Ba(OH)2. What is the concentration of the original HNO, solution? 16 O of 1 point earned 2 attempts remaining The pH of a 0.0030 M solution of Ca(OH)2 is O of 1 point earned 2 attempts remaining What volume (in mL) of 8.84 M HBr would be required to make 300.0 of a solution with a pH of 3.43? 18 0 of 1 point earned 2...
What is the pH of a solution prepared by dissolving 5.00 g of Ba(OH)2 in 5.00...
What is the pH of a solution prepared by dissolving 5.00 g of Ba(OH)2 in 5.00 liters of water. Assume no volume change after BOH)2 added. (MM of Ba(OH)2 - 171 g/mol). pH = 2.23 pH = 12.43 pH = 11.77 pH = 12.07 pH = 10.60 QUESTIONS A solution is prepared by adding 0.10 mole of sodium fluoride, Naf, to 1.00L of water. Which statement about the solution is true? The concentration of fluoride ions and sodium ions in...
2(10 points) A solution is prepared by dissolving 25.00 grams o f ba rium nitrate, Ba(NO)...
2(10 points) A solution is prepared by dissolving 25.00 grams o f ba rium nitrate, Ba(NO) in sufficient water to make 500.0 mL of solution. A 25.0 mL sample of this is diluted with water to a final volume of 200.0 mL. What is the molarity of the final solution? (Ba(NO>-398.6 g/mol) 3. (10 points) Consider a solution prepared by mixing 349 grams of methanol, CHOH CHOH-320 g/mol) and 750 grams water. The final volume of the solution is 1105...
QUESTION 1 6 points Save Answer The purpose of an indicator in an acid-base titration is...
QUESTION 1 6 points Save Answer The purpose of an indicator in an acid-base titration is to indicate the of the titration. Use Table 10.2 for the following question. If an acidic solution is titrated with a basic solution and methyl violet is used as an indicator, the solution color will change from to QUESTION 2 3 points Save Answer The molarity of a solution prepared by dissolving 17.0 g of hydrochloric acid (HCI (aq) in 133 mL of water...
6 A solution is made by dissolving 35.5 g of Ba(NO2)2 in 500.0 mL of water. Does Ba2+ have any acidic or basic properties? a O of 2 points earned 20 attempts remaining Does NO, have any acidic or basic properties? O of 2 points earned 20 attempts remaining Write the basic equilibrium equation that exists in solution с O of 2 points earned 20 attempts remaining What is the value of Kb for NO2-? The Ka of HNO2 is...
e. using kb(NO2-)=2.2x10^-11, determine the pH of the
solution
19 A solution is made by dissolving 44.9 g of Ba(NO2)2 in 500.0 mL of water. a Does Ba2+ have any acidic or basic properties? O of 0.2 points earned b Does NO, have any acidic or basic properties? O of 0.2 points earned C As NO, is a base, write the basic equilibrium equation that exists in solution O of 0.2 points earned d What is the value of Kb...
The pOH of a basic solution is 5.47. What is [OH-]? 0 of 1 point earned 2 attempts remaining The pH of a basic solution is 9.91. What is POH? 9 O of 1 point earned 2 attempts remaining The pOH of a basic solution is 2.79. What is [H-1? 10 L 0 of 1 point earned 2 attempts remaining The pH of a solution is 3.42 What is the OH solution? concentration in the 11 0 of 1 point...
QUESTION 31 A solution was made by dissolving 26.5g of Na2CO3 in 500.0 mL of water. What is the molality of this solution? (1.0g of water -1.0 ml of water) 11 Na23.6C128016 OA 0.25 m OB. 0.25 M OC 0.5M OD 0.5 m E. None of above QUESTION 32 Molarity (M) of a solution varies with O A Pressure O Temperature OC Partial pressure D. Both A and B OE. Both A and C QUESTION 33 Which of the following...
Question 15-17
The pH of a basic solution is 11.53. What is [HE]? 15 х O of 1 point earned 2 attempts remaining The pH of a basic solution is 10.97. What is [OH-]? 16 L O of 1 point earned 3 attempts remaining The pOH of an acidic solution is 11.11. What is [H-]? 17 O of 1 point earned 3 attempts remaining >
A 25.0 ml solution of HNO3 is neutralized with 28.5 mL of 0.250 M Ba(OH)2. What is the concentration of the original HNO, solution? 16 O of 1 point earned 2 attempts remaining The pH of a 0.0030 M solution of Ca(OH)2 is O of 1 point earned 2 attempts remaining What volume (in mL) of 8.84 M HBr would be required to make 300.0 of a solution with a pH of 3.43? 18 0 of 1 point earned 2...
What is the pH of a solution prepared by dissolving 5.00 g of Ba(OH)2 in 5.00 liters of water. Assume no volume change after BOH)2 added. (MM of Ba(OH)2 - 171 g/mol). pH = 2.23 pH = 12.43 pH = 11.77 pH = 12.07 pH = 10.60 QUESTIONS A solution is prepared by adding 0.10 mole of sodium fluoride, Naf, to 1.00L of water. Which statement about the solution is true? The concentration of fluoride ions and sodium ions in...
2(10 points) A solution is prepared by dissolving 25.00 grams o f ba rium nitrate, Ba(NO) in sufficient water to make 500.0 mL of solution. A 25.0 mL sample of this is diluted with water to a final volume of 200.0 mL. What is the molarity of the final solution? (Ba(NO>-398.6 g/mol) 3. (10 points) Consider a solution prepared by mixing 349 grams of methanol, CHOH CHOH-320 g/mol) and 750 grams water. The final volume of the solution is 1105...
QUESTION 1 6 points Save Answer The purpose of an indicator in an acid-base titration is to indicate the of the titration. Use Table 10.2 for the following question. If an acidic solution is titrated with a basic solution and methyl violet is used as an indicator, the solution color will change from to QUESTION 2 3 points Save Answer The molarity of a solution prepared by dissolving 17.0 g of hydrochloric acid (HCI (aq) in 133 mL of water...
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