No student devices needed. Know more
15 questions
When you make a dilution, which of these values remains constant?
The molarity (M)
The total moles of solute
The volume (V)
The concentration
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
When Na_{2}O is added to water it reacts violently instead of making a solution. What is the molar mass of Na_{2}O?
62 g/mol
39 g/mol
55 g/mol
100 g/mol
The term molar which is used to describe a solution's concentration, is written as?
M
mol
g
g/L
When a solution is heated until it boils, the molarity...
Doesn't change because everything evaporates
Decreases
Increases
Will become 1M
Molarity is ...
grams of solute/deciliters of solvent.
grams of solute/liters of solution.
moles of solute/liters of solution.
moles of solute/milliliters of solvent.
50 ml of a 1 M solution is diluted until the final volume is 80ml. How much water was added?
50 ml
1.3 ml
30 ml
130 ml
2 moles of H_{2}O would weigh ____ grams
18 grams
9 grams
36 grams
2 grams
If you have 34 mL of a 0.5 M NaBr solution, what will the concentration be if 56 mL of water is added to it?
.188 M
3.78 M
.389 M
1.76 M
The units "M" can also be written as:
mol/L
moles
g/L
g/mol
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
Explore all questions with a free account