16. The concentration of a 1500mL aqueous KCI solution was increased from 25.0 M to 80.0 M by evaporation. How much H2O was removed? (MW: K-39g/mol. Cl=35g/mol, H-1g/mol, O=16g/mol) A. 1.03 L B. 0.47 L C. 1968.75 mL D. 4.68.75 mL 17. Suppose that 15M of NaCI solution with a volume of 15L is heated and loses 2000ml of its water content. What would be the final concentration of your NaCl sample? (MW: Na-23g/mol, CI-35g/mol, H-1g/mol, 0=16g/mol) A. 3.75 M B. 0.0375 M C. 37.5 M D. 375.0 M 18. How much ml of ethanol is needed to make 2000ml of an aqueous 15% (v/v) solution? A. 3000 mL B. 300 mL C. 30 mL D. None of the above 19. What mass of HCl is needed to make 3000g of 3% solution? (MW: H=1g/mol. Cl%=35g/mol) A 0.09 gram B. 90 grams C 0.1 gram D. 10 grams
16. The concentration of a 1500mL aqueous KCI solution was increased from 25.0 M to 80.0 M by evaporation. How much H2O was removed? (MW: K-39g/mol. Cl=35g/mol, H-1g/mol, O=16g/mol) A. 1.03 L B. 0.47 L C. 1968.75 mL D. 4.68.75 mL 17. Suppose that 15M of NaCI solution with a volume of 15L is heated and loses 2000ml of its water content. What would be the final concentration of your NaCl sample? (MW: Na-23g/mol, CI-35g/mol, H-1g/mol, 0=16g/mol) A. 3.75 M B. 0.0375 M C. 37.5 M D. 375.0 M 18. How much ml of ethanol is needed to make 2000ml of an aqueous 15% (v/v) solution? A. 3000 mL B. 300 mL C. 30 mL D. None of the above 19. What mass of HCl is needed to make 3000g of 3% solution? (MW: H=1g/mol. Cl%=35g/mol) A 0.09 gram B. 90 grams C 0.1 gram D. 10 grams
Chemistry & Chemical Reactivity
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ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter13: Solutions And Their Behavior
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Problem 68GQ: The solubility of ammonium formate, NH4CHO2, in 100. g of water is 102 g at 0 C and 546 g at 80 C. A...
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![16. The concentration of a 1500mL aqueous KCI solution was increased from 25.0 M to 80.0 M by evaporation. How much
H20 was removed? (MW: K=39g/mol. Cl=35g/mol, H=1g/mol, 0=16g/mol)
A. 1.03 L
B. 0.47 L
C. 1968.75 mL
D. 4.68.75 mL
17. Suppose that 15M of Načl solution with a volume of 15L is heated and loses 2000ml of its water content. What would
be the final concentration of your NaCI sample? (MW: Na-23g/mol, Cl-35g/mol, H=1g/mol, 0=16g/mol)
A. 3.75 M
B. 0.0375 M
C. 37.5 M
D. 375.0 M
18. How much ml of ethanol is needed to make 2000ml of an aqueous 15% (v/v) solution?
A. 3000 mL
B. 300 mL
C. 30 mL
D None of the above
19. What mass of HClis needed to make 3000g of 3% solution? (MW: H-1g/mol, Cl=35g/mol)
A 0.09 gram
90 grams
C 0.1 gram
10 grams
B.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff4caf361-8d3d-4506-9965-253935172ba3%2F9f7fec21-0117-47ec-afe7-86763ce8d7ce%2Fswp6dvu_processed.jpeg&w=3840&q=75)
Transcribed Image Text:16. The concentration of a 1500mL aqueous KCI solution was increased from 25.0 M to 80.0 M by evaporation. How much
H20 was removed? (MW: K=39g/mol. Cl=35g/mol, H=1g/mol, 0=16g/mol)
A. 1.03 L
B. 0.47 L
C. 1968.75 mL
D. 4.68.75 mL
17. Suppose that 15M of Načl solution with a volume of 15L is heated and loses 2000ml of its water content. What would
be the final concentration of your NaCI sample? (MW: Na-23g/mol, Cl-35g/mol, H=1g/mol, 0=16g/mol)
A. 3.75 M
B. 0.0375 M
C. 37.5 M
D. 375.0 M
18. How much ml of ethanol is needed to make 2000ml of an aqueous 15% (v/v) solution?
A. 3000 mL
B. 300 mL
C. 30 mL
D None of the above
19. What mass of HClis needed to make 3000g of 3% solution? (MW: H-1g/mol, Cl=35g/mol)
A 0.09 gram
90 grams
C 0.1 gram
10 grams
B.
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