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Worksheetsweek 10 Quiz
Total questions: 20
Worksheet time: 50mins
What is the molarity of a 0.5L sample of a solution that contains 60.0 g of sodium hydroxide (NaOH)
0.8 M
1.5M
3.0M
6.0M
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
Which of the following is the correct formula for calculating molarity?
moles/liters of solution
moles/kg of solvent
# particles/Avogadro's #
theoretical yield/actual yield
Which of the following types of solutions has more room to dissolve solute?
supersaturated
saturated
unsaturated
If water is a polar molecule, then which of the following must be nonpolar
sugar
salt
oil
juice
Electrolytes
don't conduct electricity
conduct electricity
Which of the following will produce crystals if cooled or disturbed?
unsaturated solution
saturated solution
supersaturated solution
all of the above
Since "like dissolves like", water and oil will not mix because
both of them are polar
both of them are nonpolar
oil is polar and water is nonpolar
oil is nonpolar and water is polar
Find the molarity of 186.55 g of sucrose, C12H22O11 (MM = 342) in 250 mL of water.
2.18 M
0.746 M
1.18 M
0.545 M
Which sweet tea would you expect to taste the sweetest?
1M
3M
3.1M
2.5M
As we dilute a solution.....
The volume increases and the molarity (M) increases
The volume increases and the molarity (M) decreases
The volume decreases and the molarity (M) increases
The volume decreases and the molarity (M) decreases
2 moles of H2O would weigh ____ grams
18 grams
9 grams
36 grams
2 grams
40 grams of NaOH = ________ moles
1
2
160
1600
If 1 mole of solute is dissolved in 1 liter of water, what is the molarity?
2M
.5M
1M
It can't be determined unless you know the solute
