SolutionsSolubility Molarity DilutionFeeling Lucky

Solutions $100 (Question) The dissolving substance in a solution

Solutions $100 (Answer) solvent

Solutions $200 (Question) Separating liquids based on simply pouring the liquid off and leaving the solids behind

Solutions $200 (Answer) decanting

Solutions $300 (Question) A stable homogeneous mixture

Solutions $300 (Answer) solution

Solutions $400 (Question) A solution in which alcohol is the solvent

Solutions $400 (Answer) tincture

Solutions $500 (Question) Soap is an emulsifier. What will it do to oil and water?

Solutions $500 (Answer) An emulsifier will keep oil and water mixed.

Solubility $100 (Question) The amount of dissolved solute is greater than the amount that can permanently remain in solution at that temperature

Solubility $100 (Answer) Supersaturation

Solubility $200 (Question) Pressure has the greatest effect on the solubility of this

Solubility $200 (Answer) Gases

Solubility $300 (Question) The amount of a particular substance (solute) in a given quantity of a solution.

Solubility $300 (Answer) Concentration

Solubility $400 (Question) How many grams of NaNO 3 will dissolve at 40 o C?

Solubility $400 (Answer) 105 grams

Solubility $500 (Question) What type of solution forms when 90 grams of KNO 3 is dissolved in 100 grams of water at 60 o C?

Solubility $500 (Answer) Unsaturated

Molarity $100 (Question) What is the molarity of moles of NaCl in 2.5 L of solution?

Molarity $100 (Answer) moles = 2.5 L 0.35 M NaCl

Molarity $200 (Question) What is the molarity of 1.30 moles of KNO 3 in 250 mL of solution?

Molarity $200 (Answer) 1.30 moles = L 5.2 M KNO 3

Molarity $300 (Question) How many moles of K 2 Cr 2 O 7 are contained in 330 mL of a 2.4 M solution?

Molarity $300 (Answer) 0.24 M x L = 0.79 moles K 2 Cr 2 O 7

Molarity $400 (Question) A solution contains 2.55 moles of NaOH and its concentration is 7.5 M. What is its volume in mL?

Molarity $400 (Answer) 2.55 moles = 0.34 L 7.5 M 340 mL 0.34 L x 1,000 mL = 1 L

Molarity $500 (Question) What mass in grams of KCl would be needed to make mL of 1.5 M solution?

Molarity $500 (Answer) L X 1.5 M = 0.75 mol KCl 0.75 mol KCl x g KCl = 1 mol KCl 56 g KCl

Dilution $100 (Question) What will be the final concentration of solution, when 14.0 mL of 4.20 M Na 2 CO 3 is diluted to 86.0 mL?

Dilution $100 (Answer) M Na 2 CO M x 14.0 mL = M 2 x 86.0 mL

Dilution $200 (Question) Concentrated HCl is 12.0 M. What volume is needed to make mL of 3.00 M solution?

Dilution $200 (Answer) 12.0 M x V 1 = 3.00 M x mL 125 mL

Dilution $300 (Question) 16.4 mL of 1.25 M solution of NaCl is on hand, but you need a 0.65 M solution. How many mL of 0.65 M can you make?

Dilution $300 (Answer) 1.25 M x 16.4 mL = 0.65 M x V 2 32 mL

Dilution $400 (Question) If you have 225 mL of 2.3 M NaBr solution, what will the concentration be if you add 750 mL more water to it?

Dilution $400 (Answer) 2.3 M x 225 mL = M 2 x 975 mL 0.53 M

Dilution $500 (Question) A student wants to dilute 25.0 mL of 3.50 M H 2 SO 4 to 1.50 M solution. How many mL of water is needed?

Dilution $500 (Answer) 3.50 M x 25.0 mL = 1.50 M x V mL of water is needed 58.3 mL ‒ 25.0 mL =

Feeling Lucky $100 (Question) What is the meaning of immiscible

Feeling Lucky $100 (Answer) Two liquids do not dissolve in one another

Feeling Lucky $200 (Question) A mixture that appears homogenous throughout and shows the Tyndall effect

Feeling Lucky $200 (Answer) colloid

Feeling Lucky $300 (Question) CO 2 in H 2 O is an example of which solute-solvent solution?

Feeling Lucky $300 (Answer) Gas – liquid

Feeling Lucky $400 (Question) What three factors affect the solubility of a solute?

Feeling Lucky $400 (Answer) Surface area, temperature, shaking/stirring

Feeling Lucky $500 (Question) If 121 grams of NH 4 Cl were added to 100 g of water at 90 o C, how much will not dissolve?

Feeling Lucky $500 (Answer) 121 g – 70 g = 51 grams of NH 4 Cl will not dissolve