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Question 7 If the concentration of sodium carbonate in water is 12.8 ppm, what is the molarity of Nazco.(aq)? The molar mass of NazCo, is 106.0 g/mol. Assume the density of the solution is 1.00 g/mL. a) 8.28 x 10-6 M 3 b) 1.21 x 104 M c) 1.36 x 10-3 M d) 0.136 M e) 0.121 M

Question 7 If the concentration of sodium carbonate in water is 12.8 ppm, what is the molarity of Nazco.(aq)? The molar mass of NazCo, is 106.0 g/mol. Assume the density of the solution is 1.00 g/mL. a) 8.28 x 10-6 M 3 b) 1.21 x 104 M c) 1.36 x 10-3 M d) 0.136 M e) 0.121 M

Chemistry
Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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Question 7 If the concentration of sodium carbonate in water is 12.8 ppm, what is the molarity of Nazco.(aq)? The molar mass of Na,CO, is 106.0 g/mol. Assume the density of the solution is 1.00 g/mL. a) 8.28 x 10-6 M 3 b) 1.21 x 104 M c) 1.36 x 10-3 M d) 0.136 M e) 0.121 M Question 8 Which of the following compounds is not miscible with water? a) CH3NH2 b) CH3COOH c) Cl4 d) CH3CN e) HOCH2CH2OH Question 9 The solubility of 1-pentanol in water is 2.7 g per 100 g of water at 25°C. What is the maximum amount of 1-pentanol that will dissolve in 3.6 g of water at 25°C? a) 0.097 g b) 0.75 g c) 2.7 g d) 9.7 g e) 0.0075 g
Transcribed Image Text:Question 7 If the concentration of sodium carbonate in water is 12.8 ppm, what is the molarity of Nazco.(aq)? The molar mass of Na,CO, is 106.0 g/mol. Assume the density of the solution is 1.00 g/mL. a) 8.28 x 10-6 M 3 b) 1.21 x 104 M c) 1.36 x 10-3 M d) 0.136 M e) 0.121 M Question 8 Which of the following compounds is not miscible with water? a) CH3NH2 b) CH3COOH c) Cl4 d) CH3CN e) HOCH2CH2OH Question 9 The solubility of 1-pentanol in water is 2.7 g per 100 g of water at 25°C. What is the maximum amount of 1-pentanol that will dissolve in 3.6 g of water at 25°C? a) 0.097 g b) 0.75 g c) 2.7 g d) 9.7 g e) 0.0075 g
A 15 meter by 12-meter pool of water has a depth of 2.2 meters. What mass of silver ion is present in the reservoir if the concentration of silver ion is 0.14 ppm? (1 m = 1000 L; assume the density of the solution is 1.00 g/mL) a) 5.5 x 104g b) 5.5 x 10-2 g c) 0.55 g d) 5.5 g e) 55 g Question 11 The average rate of disappearance of ozone in the following reaction is found to be 8.93 x 10-3 atm/s. 20,(8) → 30,(3) What is the rate of appearance of O2during this interval? a) 5.95 x 10-3 atm/s b) 8.93 x 10-3 atm/s c) 26.6 x 10-3 atm/s d) 356 x 10-3 atm/s e) 13.4 x 10-3 atm/s Question 12 5 For the reaction provided, the rate of disappearance of 103 (aq) at a particular time and concentration is 2.6 x 10-3 mol/L's. 10,-(aq) + 51(aq) + 6H*(aq)312(aq) + 3H20() What is the relative rate of appearance of l2(aq)? a) 8.7 x 10-3 mol/L's b) 3 x 10-3 mol/L's c) -8 x 10-3 mol/L's d) 8 x 10-3 mol/L's e) 1 x 10-3 mol/L's
Transcribed Image Text:A 15 meter by 12-meter pool of water has a depth of 2.2 meters. What mass of silver ion is present in the reservoir if the concentration of silver ion is 0.14 ppm? (1 m = 1000 L; assume the density of the solution is 1.00 g/mL) a) 5.5 x 104g b) 5.5 x 10-2 g c) 0.55 g d) 5.5 g e) 55 g Question 11 The average rate of disappearance of ozone in the following reaction is found to be 8.93 x 10-3 atm/s. 20,(8) → 30,(3) What is the rate of appearance of O2during this interval? a) 5.95 x 10-3 atm/s b) 8.93 x 10-3 atm/s c) 26.6 x 10-3 atm/s d) 356 x 10-3 atm/s e) 13.4 x 10-3 atm/s Question 12 5 For the reaction provided, the rate of disappearance of 103 (aq) at a particular time and concentration is 2.6 x 10-3 mol/L's. 10,-(aq) + 51(aq) + 6H*(aq)312(aq) + 3H20() What is the relative rate of appearance of l2(aq)? a) 8.7 x 10-3 mol/L's b) 3 x 10-3 mol/L's c) -8 x 10-3 mol/L's d) 8 x 10-3 mol/L's e) 1 x 10-3 mol/L's
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