Home Work Help
We dissolve 2.45 g of sugar in 200.0 g water. what is the mass percent of sugar in the solution?
1.23%
C.
2.42%
D.
123%
E.
none of the above
Question 2
The molarity of a solution prepared by dissolving 15.0 g of NaCl in 1000 mL water is?
A.
0.150 M
B.
0.0150 M
C.
15.0 M
D.
1.50 x 102 M
E.
none of the above
10 points
Question 3
Given that you wish to use exactly 0.325 mole of NaCl to give a 2.50 M NaCl solution, how many milliliters of solution must you prepare?
A.
130. mL
B.
0.130 mL
C.
7.69 mL
D.
0.813 mL
E.
none of the above
Question 4
How many grams of LiF would be present in 575 mL of 0.750 M LiF solution?
A.
11.2 g
B.
0.0338 g 1.12 × 104 g
C.
1.12 × 104 g
D.
19.9 g
E.
33.8 g
Question 5
What volume (in mL) of a 0.500 M fructose (C6H12O6) solution can be made from 11.3 g of fructose?
A.
11.3 mL
B.
0.125 mL
C.
31.4 mL
D.
5.65 mL
E.
125 mL
Question 6
What volume of 12.0 M HCl is required to make 75.0 mL of 3.50 M HCl?
A.
21.9 mL
B.
0.560 mL
C.
257 mL
D.
560. mL
E.
none of the above
Question 7
If you add 4.00 mL of pure water to 6.00 mL of 0.750 M NaCl solution, what is the concentration of sodium chloride in the diluted solution?
A.
0.250 M
B.
0.450 M
C.
0.500 M
D.
1.13 M
E.
none of the above
Question 8
Which of the following substances is NOT a solution?
A.
humid air
B.
beer
C.
oxygen
D.
steel
E.
All of the above are solutions.
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