Solutions REVIEW Question Preview (ID: 18652)
Solutions And Solubility.
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What is the definition of Molarity?
a) The mass of solute is dissolved in the total mass of the solution.
b) The moles of solute in a liter of solution.
c) A substance that dissolves in water to give a solution that conducts electric current
d) How much solution is dissolved in a given amount of solute
What does a solubility curve show?
a) The amount of H2O needed to dissolve the solute.
b) How much solute has dissolved at 30C.
c) The concentration of a solution.
d) The maximum amount of a substance that can be dissolved in 100g H20 at a given temperature
What is the definition of concentration?
a) How much solute is dissolved in a given amount of solution.
b) How much solution is dissolved in a given amount of solute.
c) A substance that dissolves in water to give a solution that conducts electric current.
d) A substance that dissolves in water to give a solution that does not conduct an electric current.
Solubility curves can show us information about what three types of solutions?
a) unsaturated, saturated, supersaturated.
b) not full, full, really full
c) unconcentrated, concentrated, superconcentrated
d) emulsions, colloidals, solutions
What are the three main ways of increasing the rate of dissolving?
a) increase temperature, increase agitation, and decrease surface area
b) increase temperature, increase agitation, and increase surface area
c) decrease temperature, decrease agitation, and decrease surface area
d) increase temperature, decrease agitation, and increase surface area
Solutions with water as the solvent are called
a) tincture
b) alloy
c) aqueous
d) saturated
Which two substances are miscible in all proportions?
a) ethanol (alcohol) and water
b) water and mineral oil
c) water and gasoline
d) sugar and water
When solutions of NaOH and Pb(NO3)2 are combined, what precipitate forms?
a) Lead (II) Nitrate
b) Sodium Nitrate
c) Sodium Hydroxide
d) Lead (II) Hydroxide
In the following equation: AgNO3(aq) + NaCl(aq) = what is the formula of the precipitate that is formed?
a) NaNO3
b) AgCl
c) Na(NO3)2
d) AgCl2
What is the balanced net ionic equation for the formation of PbCl2?
a) Pb(aq) + Cl(aq) = PbCl2(s)
b) Pb+2(aq) + Cl-1(aq) = PbCl2(s)
c) Pb(aq) + 2Cl(aq) = PbCl2(s)
d) Pb+2(aq) + 2Cl-1(aq) = PbCl2(s)
In which of the following net ionic equations did a precipitate NOT form?
a) 2Cl−(aq) + 2Ag+(aq) = 2AgCl(s)
b) Ni3+ (aq) + 3 NO3¯ (aq) + 3 K+ (aq) + 3 Br¯ (aq) = Ni3+ (aq) + 3 NO3¯ (aq) + 3 K+ (aq) + 3 Br¯ (aq)
c) 2 Co3+ (aq) + 3 S2- (aq) = Co2S3 (s)
d) Fe3+ (aq) + 3 OH¯ (aq) = Fe(OH)3 (s)
Which of the following shows a net ionic equation?
a) Mg2+ (aq) + 2 NO3¯ (aq) + 2 Na+ (aq) + CO32- (aq) = MgCO3 (s) + 2 Na+ (aq)
b) Mg(NO3)2 (aq) + Na2CO3 (aq) = MgCO3 (s) + 2 NaNO3 (aq)
c) Mg2+ (aq) + CO32- (aq) = MgCO3 (s)
d) Mg2+ (aq) + CO32- (aq) = MgCO3 (s) + Mg2+ (aq)
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