Solution concentration/using table F solubility charts

Using solubility charts (table F) & Concentration

By Katie Smit

​•Provides some general guidelines about the solubility of different salts (ionic substances)

•Used to determine whether a particular compound is soluble or insoluble in water (aqueous) solution.

•If an insoluble substance (solid) is formed in the reaction between two aqueous solutions of different salts, it is called a precipitate and settles to the bottom of the container.

• Remember double replacement reactions- AgCl_(s)- (s) = solid​

- LiBr?

-MgSO₄?​

-​AlPO₄

Multiple Choice

Which of the salts is most soluble in water?

• AgI 

• AgBr 

• ZnCO₃ 

• K₂SO₄

Multiple Choice

Which compound, when stirred in water, will not pass through filter paper?

• HgCl

• MgCrO₄

• Na₃PO₄

• Na₂S

Multiple Choice

A student observed the following reaction:

  NaCl(aq) + AgNO₃₍aq) --> NaNO₃(aq) + AgCl(s)

After the products were filtered, which substance remained on the filter paper?

• NaCl 

• AgNO₃

• NaNO₃ 

• AgCl

Multiple Choice

Which compound could form a concentrated solution? (Hint: it must be soluble)

• AgBr

• AgCl 

• Ag₂CO₃

• AgNO₃

Multiple Choice

True or false: A dilute solution is "stronger" than a concentrated one.

• True

• False

Multiple Choice

Which pitcher is the most dilute?

• 125 g of mix

  100 mL water

• 100 g of mix

  100 mL water

• 50g of mix

  100 mL water

• 25g of mix

  100 mL water

Multiple Choice

Which pitcher of lemonade is the most concentrated?

• 50 g of mix

  100 mL water

• 25 g of mix

  100 mL water

• 200 g of mix

  100 mL water

• 100 g of mix

  100 mL water

Percent composition

% composition = part x 100%

whole​

Some text here about the topic of discussion

Multiple Choice

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%

Multiple Choice

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 mass of solute is needed to make 75.0 g of a 10% solution?

​

% = part x 100

​ whole

Some text here about the topic of discussion

Multiple Choice

What mass of solute is needed to make 75.0 g of a 3.4% solution?

• 2.55 g
• 22 g
• 0.05 g

What mass of water should be added to 20.0 g of KCl to make 15% by mass solution?

​

% = part x 100

​ whole

Some text here about the topic of discussion

Multiple Choice

What mass of water should be added to 22.0 g of KCl to make 5.50% by mass solution?

• 400 g

• 40 g

• 0.25 g

• 25 g

Multiple Choice

What is the percent concentration of sugar in pink lemonade if 28 g of sugar is added 209 g of water?

• 14.7 %

• 5.14 %

• 13.4 %

• 8.47 %

• 11.8 %

Multiple Choice

What is the percent concentration of sugar in pink lemonade if 28 g of sugar is added to water to form 209g of solution?

• 14.7 %

• 5.14 %

• 13.4 %

• 8.47 %

• 11.8 %

Molarity (M) (mol/L)

•Number of moles of solute in 1L of solution

•This tells us the exact strength of the solution.

•We add a specific amount of solute to a specific amount of water…once this is made, the molarity does not change.

•See Table T from Chemistry Reference Tables

  Molarity = Moles of Solute     =      mol   = M

       Liters of Solution   Liters

Multiple Choice

What is the molarity of 3 mole of hydrochloric acid in 3 L of water. 

• 3
• 1
• 6
• 9

Multiple Choice

Molarity is measured in

• moles per kg
• mols per L
• moles per kJ
• moles per mL

Example

What is the molarity of a solution containing 82.0g Ca(NO3)2 in 2.0 L of solution?

Multiple Choice

What is the molarity of a solution containing 22.0g Ca(NO3)2 in 2.0 L of solution?

• 11.0 M

• 0.067 M

• .0134 M

• 22.0 M

Multiple Choice

How many moles of NaCl are present in a solution with a molarity of 8.59M and 125 mL of solution?

• 1.07 gram
• 62.7 mol
• 1.07 mol
• 62.7 grams

Multiple Choice

How many liters would you need to make a 1 M solution if you have 6 mol of Sodium Hydroxide? 

• 2
• 3
• 4
• 6 

Multiple Choice

What is the concentration of a solution in parts per million if 0.02 grams of NaCl is dissolved in 1000 grams of water?

• 2 ppm

• 20 ppm

• 200 pm

• 0.2 ppm

Multiple Choice

Which unit can be used to express the concentration of a solution?

• L/s

• J/g

• ppm

• kPa

Multiple Choice

What is the concentration of solution (in ppm) made up of 0.005 grams of solute in 350 grams of solution?

• 14.3 ppm

• 12.1 ppm

• 1.4 ppm

• 9.8 ppm

Multiple Choice

A solution is made from 7 grams of solute dissolved in 1450 grams of solvent. What is the concentration of this solution in ppm?

• 4,804.4 ppm

• 4,827.6 ppm

• 4,851.0 ppm

• 4,790.0 ppm