Question #55444

17 Which is of higher concentration; 1 molal solution or 1 molar solution

None of the above

1 molal solution

1 molar solution

They are equivalent

18 A solution contains 4 grams of sodium hydroxide in 250ml of solution. If Na=23, O=16 , H=1 and

1cm3

of water weighs1g, what is the concentration of the solution in weight per weight percent?

2.81%

1.92%

1.57%

3.29%

19 A solution contains 4 grams of sodium hydroxide in 250ml of solution . If Na=23, O=16, H=1 and

1cm3

of water weighs 1g, what isthe concentration of the solution in grams per

dm3

?

12

14

16

18

20 What is a standard solution?

Solution that has been weighed

Solution which has a concentration that is accurately known

Solution that has one standard amount dissolved in water

Solution that is very distinct in its properties

None of the above

1 molal solution

1 molar solution

They are equivalent

18 A solution contains 4 grams of sodium hydroxide in 250ml of solution. If Na=23, O=16 , H=1 and

1cm3

of water weighs1g, what is the concentration of the solution in weight per weight percent?

2.81%

1.92%

1.57%

3.29%

19 A solution contains 4 grams of sodium hydroxide in 250ml of solution . If Na=23, O=16, H=1 and

1cm3

of water weighs 1g, what isthe concentration of the solution in grams per

dm3

?

12

14

16

18

20 What is a standard solution?

Solution that has been weighed

Solution which has a concentration that is accurately known

Solution that has one standard amount dissolved in water

Solution that is very distinct in its properties

Expert's answer

17. 1 molar solution (only for solvents with density not less than 1 g/mL)

18. 1.57%

19. 16 g/L

20. Solution which has a concentration that is accurately known

18. 1.57%

19. 16 g/L

20. Solution which has a concentration that is accurately known

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