D. None of the above 11. A 315mL of water was added to 2100 mL of 19M NaCI solution. What is the new concentration of the solution? (MW: Na 23 g/mol, Cl 35g/mol) A. 2.85 M В. 2.48 M C. 18.60 M D. 19.0 M %3D 12. What is the molarity of a solution in which 150g of Cao are dissolved in 1900ml of solution? (MW: Ca 40g/mol, 0=16g/mol) A. 1.41 mol/L B. 0.0014 mol/L C. 0.0014 M D. 1.41 m 13. What is the normality of a solution containing 90g of HCI in 2600ml of solution? (MW: H 1g/mol, Cl=35g/mol) A. 0.00048 eq/mol B. 0.48 eq/mol C. 0.00096 eq/mol D. 0.96 eq/mol 14. Find the molality of a solution made by adding 8g of NaOCI to 5000g of water. (MW: Na 23 g/mol, 0=16 g/mol, Cl=35g/mol) A. 0.000021 m B. 0.02 m C. 0.1081 m D. 0.001081 m 15. 500g of Al:S is dissolved in H20 to make 15L of solution What is its normality? (MW: Al=27g/mol, S=32g/mol, H=lg/mol, O=16g/mol) 0.11 N B. 0.07 N C. 0.22 N D 0.04 N
D. None of the above 11. A 315mL of water was added to 2100 mL of 19M NaCI solution. What is the new concentration of the solution? (MW: Na 23 g/mol, Cl 35g/mol) A. 2.85 M В. 2.48 M C. 18.60 M D. 19.0 M %3D 12. What is the molarity of a solution in which 150g of Cao are dissolved in 1900ml of solution? (MW: Ca 40g/mol, 0=16g/mol) A. 1.41 mol/L B. 0.0014 mol/L C. 0.0014 M D. 1.41 m 13. What is the normality of a solution containing 90g of HCI in 2600ml of solution? (MW: H 1g/mol, Cl=35g/mol) A. 0.00048 eq/mol B. 0.48 eq/mol C. 0.00096 eq/mol D. 0.96 eq/mol 14. Find the molality of a solution made by adding 8g of NaOCI to 5000g of water. (MW: Na 23 g/mol, 0=16 g/mol, Cl=35g/mol) A. 0.000021 m B. 0.02 m C. 0.1081 m D. 0.001081 m 15. 500g of Al:S is dissolved in H20 to make 15L of solution What is its normality? (MW: Al=27g/mol, S=32g/mol, H=lg/mol, O=16g/mol) 0.11 N B. 0.07 N C. 0.22 N D 0.04 N
Chapter4: Calculations Used In Analytical Chemistry
Section: Chapter Questions
Problem 4.31QAP
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Transcribed Image Text:D. None of the above
11. A 315mL of water was added to 2100 mL of 19M NaCI solution. What is the new concentration of the solution?
(MW: Na 23 g/mol, CI = 35g/mol)
A. 2.85 M
B. 2.48 M
C. 18.60 M
D. 19.0 M
%3D
12. What is the molarity of a solution in which 150g of Ca0 are dissolved in 1900ml of solution? (MW: Ca 40g/mol,
0=16g/mol)
A. 1.41 mol/L
B. 0.0014 mol/L
C. 0.0014 M
D. 1.41 m
13. What is the normality of a solution containing 90g of HCI in 2600ml of solution? (MW: H = 1g/mol, Cl=35g/mol)
A. 0.00048 eq/mol
B. 0.48 eq/mol
C. 0.00096 eq/mol
D. 0.96 eq/mol
14. Find the molality of a solution made by adding 8g of NaOCI to 5000g of water. (MW: Na 23 g/mol, 0=16 g/mol,
Cl=35g/mol)
A. 0.000021 m
B. 0.02 m
C. 0.1081 m
D. 0.001081 m
15. 500g of Al:S is dissolved in H20 to make 15L of solution What is its normality? (MW: Al=27g/mol, S=32g/mol,
H=lg/mol, O=16g/mol)
A
0.11 N
B.
0.07 N
C. 0.22 N
D 0.04 N
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