Mixtures
Practice problems on molarity
Problems on diluting molar solutions
Vocabulary
More vocabulary
100

A heterogeneous mixture of intermediate-sized particles is called a....

What is a colloid?
100

An aqueous 2.00M  hydrochloric acid solution is prepared with a total volume of 0.350L. The molecular weight of hydrochloric acid is 36.46 g/mol. Find the mass of hydrochloric acid (in grams) that is needed for the solution. 

What is 25.5 grams? 
100

Find the milliliters of 5.0 M copper(II) sulfate solution must be added to 160 mL of water to achieve a 0.30 M copper(II) sulfate solution.

What is 10 ml?
100

An interaction of a solute with the solvent, which leads to stabilization of the solute species in the solution.

What is a solvation?
100

A chemical solution containing the maximum concentration of a solute dissolved in the solvent. 

What is a saturated solution?
200
Colloids can be identified using the....
What is the Tyndall Effect?
200

Find how many moles of sodium hydroxide are need to make 2.0 L of a 1.5 M solution

What is 3.0 moles? 
200

A 40.0 mL volume of 1.80 M Fe(NO3)3 is mixed with 21.5 mL of 0.808M Fe(NO3)3 solution. Calculate the molar concentration of the final solution.

What is 1.45 M? 
200
Steering or shaking a mixture 
What is agitation?
200

When a solution can have solute added and dissolved, the solution is....

What is an unsaturated solution?
300

A solid, liquid or gaseous mixture that has the same proportions of its components throughout a given sample.

What is a homogenous mixture?
300
Find how many moles of sodium carbonate are in 40.0 mL of a 2.80 M solution.
What is 0.112 moles?
300

2.00 L of 0.445 M HCl, you add 3.88 L of a second HCl solution of an unknown concentration. The resulting solution is 0.974 M. Assuming the volumes are additive, calculate the molarity of the second HCl solution.

What is 1.25 M?
300
Breaking the solute into small pieces increases its surface area. A greater surface area allows more collisions to occur. 
What is a surface area?
300

A state of a solution that contains more of the dissolved material than could be dissolved by the solvent under normal circumstances. 

What is a supersaturated solution?
400

 A mixture is a combination of two or more pure substances in which the original substances retain their chemical properties.

What is a heterogeneous mixture?
400

Find how many moles of cobalt(II) chloride are in 5.00 L of a 3.70 M solution

What is 18.5 moles?
400

1.00 L of a solution is prepared by dissolving 125.6 g of NaF in it. If I took 180 mL of that solution and diluted it to 500 mL, determine the molarity of the resulting solution.

What is 1.08 M?
400
A physical property referring to the ability for a given substance, the solute, to dissolve in a solvent.
What is solubility?
400

A concentration unit, defined to be the number of moles of solute divided by the number of liters of solution.

What is molarity?
500

A substance made by mixing other substances together.

What is a mixture?
500

A particular 1.75 M solution of sodium chloride contains 20.0 g of solute. Find the total volume of the solution in mL.

What is 196 ml? 
500

Find the molar concentration of chloride ions in a solution prepared by mixing 100.0 mL of 2.0 M KCl with 50.0 mL of a 1.50 M CaCl2 solution. 

What is 2.33 M?
500

A liquid with molecules that have a slight electrical charge due to its shape. 

What is a polar solvent?
500

A heterogeneous mixture in which solute-like particles settle out of a solvent-like phase sometime after their introduction.

What is suspension?
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