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WorksheetsConcentrations of Solutions
Total questions: 25
Worksheet time: 19mins
How do you increase the concentration of a solution?
Add more powder or solute
Add more water
Less powder or solute
Less water or solvent
How do you decrease the concentration of a solution?
Add more powder or solute
Add more water or solvent
Less powder or solute
Less water or solvent
What is the term we use when we have a less concentrated solution?
dilute
solvent
concentrated
volume
Calculate the mass percent of solution, if there is 100 g of sugar and 400 g of water
30%
25%
20%
15%
What is the percent by mass of a sugar solution where 10 grams of sugar is added to 100 grams of water?
.10%
0.091%
9.1%
910%
What is the concentration, in percent by volume, of 15.3 mL of solute in 2650 mL of solution?
0.58%
0.0058%
5.8%
58%
You can make a solution more concentrated by adding more __________.
solute
solvent
water
lemonade
Which one is dilute?
10 g of sugar dissolved in 100 ml of water
10 g of sugar dissolved in 50 ml of water
20 g of sugar dissolved in 100 ml of water
20 g of sugar dissolved in 50 ml of water
It refers to the amount of solute dissolved in a given amount per volume of solution.
Concentration
Dilution
Precipitation
Solution
What is the percent concentration of sugar in pink lemonade if 28 g of sugar is added to 209 g of water?
14.7 %
15%
13.4 %
11.8 %
What is the percent by mass of a solution made by dissolving 20.0 g of NaCl into 180.0 g of water?
10.0 %
11.1 %
80.0 %
20.0 %
What is the concentration, in percent by mass, of 0.62 g of solute in 45.0 g of solution?
0.014 %
1.4 %
0.13%
14%
What is the concentration, in percent by volume, of 8 mL of solute in 500 mL of solution?
0.58%
0.0058%
5.8%
1.6%
In a chemistry class, Gabby prepared a solution by mixing 25 gram (g) of sugar in 80g of water. What are the concentrations of the solute and solvent in percent (%) by mass?
solute: 34% ; solvent: 60%
solute: 14% ; solvent: 86%
solute: 24% ; solvent: 76%
solute: 44% ; solvent: 56%
A soft drink that is more diluted is ______ in color and ______ in taste
darker, weaker
lighter, weaker
darker, stronger
lighter, stronger
A soft drink that is more concentration is _____ in color and _______ in taste
lighter, stronger
darker, weaker
lighter, weaker
darker, stronger
A solution containing a SMALL amount of solute compared with the amount of solvent present is called _____.
concentrated
heterogneous
diluted
homogeneous
A solution containing a LARGE amount of solute compared with the amount of solvent present is called _____.
dilute
concentrated
solution
mixture
A student is preparing solutions for a laboratory experiment by dissolving solid solutes in liquid solvents. Which action will increase the rate of solubility?
lowering the temperature of the solvent
stirring the solute in the solution
increasing the pressure on the solution
increasing the particle size of the solute
What is the percent by volume of isopropanol in a 90ml solution that contains 25mL isopropanol?
26.8 % isopropanol
26.9 % isopropanol
27.8 % isopropanol
27.9 % isopropanol
Brass is a copper- zinc alloy. If the concentration of zinc is relatively low, the brass has a golden color and is often used for inexpensive jewelry. If a 35.0g pendant contains 1.7g of zinc, what is the % by mass of zinc in brass?
4.7%
4.8%
4.9%
10%
What is the percent by mass concentration of a solution that contains 6.0g of sugar dissolved in 20.7g of water?
21.21%
22.21%
22.47%
22.74%
What is the percentage concentration in the following solution given that 5g sucrose in 90g water?
4 %
5 %
6 %
7 %
The following are quantitative descriptions of concentrations, EXCEPT:
percent by mass
percent by volume
dilute solution
