Vocab
(20s)What is the measure of the amount of solute that is dissolved in a given quantity of solvent
Concentration
(60s)How many moles of solute are present in 1.50 L of 0.240 M Na2SO4
mm=119.05
0.360 moles
You dilute a solution by adding water. Does the number of moles of solute increase, decrease, or remain the same?
Remains the same
Ions present on both sides of the equation
What are spectator ions
(30s)You start with 10.0 L of a 5.0 M solution. You add water until the final volume is 50.0 L. What is the new concentration?
(Triple points to the first team in correctly)
1.0 M
(20s)What is the number of moles of a solute dissolved per liter of solution
Molarity
(60s)A Saline solution contains .90 g NaCl in 100. mL of solution, what is the molarity of the solution?
mm=58.44
0.15M
You add water to a solution. Does the concentration increase, decrease, or remain the same?
Decrease
Does a reaction occur when an aqueous solution of NiCl2(aq) is added to a test tube containing strips of metallic zinc
yes
(40s)You want to make 1.2 L of a 2.0 M solution. What volume of the 6.0 M solution must you use to dilute?
0.40 L
(20s)What is the name given to a solution that has the maximum amount of solute dissolved possible.
Saturated Solution
(60s)You dissolve 30.0 g NaCl in 1.50 L water. What is the molarity of this solution?
First team correct gets triple points!
mm=58.44
0.342 M
You evaporate a solution. Does the concentration increase, decrease, or remain the same?
Increase
Does a reaction occur when NiCl2(aq) is added to a test tube containing Zn(NO3)2(aq)?
no
(60s)You add 300. mL of water to 200. mL of a 10.0 M solution. What is the molarity of the final solution?
4.00 M
(20s)What is the name given to the substance that gets dissolved in a solution?
Solute
(60s)What mass of CaCl2 is needed to make 250. mL of 2.0M solution
mm=110.98
55 g
The oxidation number of nitrogen in nitric acid
What is +5
predict what gas forms when Na2SO3(s) reacts with HCl(aq).
SO2(g)
(60s)How many milliliters of a solution of 2.00M MgSO4 would you need to prepare 120. mL of .400M MgSO4
24.0 mL (watch sig figs!)
(20s)What is the equation for dilution of a solution?
M1V1=M2V2
(60s)How many mL of 1.25 M solution can be made using 8.0 g NH4NO3?
mm=80.06
80. mL
As you increase the independent variable, the dependent variable also increase. This is known as a ________ relationship.
Direct
Make sure you know that as one variable increases, the other decreases is known as inverse.
Which ions, if any, are spectator ions in this reaction?
AgNO3(aq) + NaCl(aq) ⟶ AgCl(s) + NaNO3(aq)
Na+(aq) and NO3–(aq)
(60s)How much water must be added to 50.0 mL of 4.00M KI to make 1.00 M KI?
150. mL or 0.150 L water added
(Needs to have a final volume of 200. mL)