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JEOPARDY!
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• Chemistry Final Review

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JEOPARDY!
Acids and Bases
Dissolving
Solubility/ Precipitation
Parts of Solutions
Concentration
Real Life Applications
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Daily Double Graphic and Sound Effect!
Daily Double!!!

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What does dissolve in water mean?
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Dissolve in water means that the ions of the
compound break up when put in water
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What is an electrolyte?
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An electrolyte is a compound that dissolves in
water
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What are unsaturated, saturated, and
supersaturated solutions?
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Unsaturated means that more solute can be added,
saturated means that a solution has dissolved all
the solute it can hold, supersaturated means that
due to an increase in heat a solution has more
solute dissolved than it can normally hold.
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Break up (NH4)3PO4 into ions
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3NH4 PO43-
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What is the formula for vinegar and what kind of
electrolyte is it? Why?
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The formula is HCH3COO and it is a weak
electrolyte because the not many H ions
dissociate.
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If you 2.5 moles of Na is dissolved in 5 L of
water, what is the molarity?
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.5 M Na
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What is the molarity of Cl- in 1.2 M CaCl2?
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2.4 M Cl-
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Find the (W/V) for 60 g of solute in .6 L of a
solution
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10(W/V) Dont forget to convert to milliliters
for (W/V)
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Find the molarity of 5.6 g of lead nitrate in 400
mL water
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5.6 g x (l mol/331.2 g/mol) .0169 mol..0169
mol/.4 L .0423 M
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Daily Double!!!
What is the total ion molarity for 6.7 g of
Ammonium Sulfide in 5 L of water?
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6.7 g x (1 mol Ammonium Sulfide/68.154 g/mol)
.0983 mol.0983 mol x 3 ions .295 mol
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What is a solute?
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A solute is the chemical that is dissolved
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If 11 moles of NaCl are dissolved in 330 kg of
water, what is its molality?
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.033 m
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When magnesium chloride is placed into water, it
seems to disappear. Does it disappear? If not,
why does it seem this way?
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Magnesium chloride does not disappear when put in
water, the particles are just surrounded by water
and too tiny to see.
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What is hydration and ionization?
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Hydration is what occurs when an ionic compound
dissolves in water, ionization is the process of
breaking up the compound into separate ions.
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What kind of electrolytes conduct electricity
well? Why?
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Strong electrolytes conducted electricity better
because they make free-floating ions in water.
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What is a precipitate?
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A precipitate is an insoluble compound that does
not dissolve in water
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If silver nitrate was mixed with sodium chloride,
would a precipitate form?
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Yes, AgCl would precipitate
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Indicate what precipitates forms, if anyNaNO3
Li2CO3
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No precipitate forms
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Indicate what precipitates forms, if
anyCa(CH3COO)2 Na3PO4
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Ca3(PO4)2 would form
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Indicate what precipitates forms, if
anyMagnesium iodide and mercury (I) flouride
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Hg2I2 and MgF2 would form
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What is the difference between pH and pOH?
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pH is a measure of the H concentration and pOH
is a measure of the OH- concentration
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If there are .006 mol of H in 2 L of water, what
is the H concentration?
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.006 mol/2 L .003 M H
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If the pH increase by 2, what happens to the H
concentration?
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It decreases by 100
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What is the H concentration if the pOH is 8.6?
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14 8.6 5.4pH 5.410-5.4 3.98 x 10-6
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If .05 moles of HCl are put in 60 L of water,
what is the pH?
Daily Double!!!
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.05 moles / 60 L -8.33 x 10-4 M10(-8.33 x
10-4) 3.08
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What are real life uses for an acid and a base?
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Acid Batteries, fertilizers, soaps, shampoo,
detergentsBase Drain cleaner, laxatives,
antacids
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How could the sweetness of lemonade be maximized
in accordance with saturation?
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Super saturation of the lemonade with sugar
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What effects from acid rain suggest that it is
acidic?
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Corrosion of metal/stone, lower the pH of water
bodies, damage to nature via resource ruination
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Name one important food and the electrolyte in it
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Banana (K), Salty foods (Na/Cl-), Milk (Ca2),
Leafy Greens (Mg2)
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If you frequently have heartburn , would putting
ketchup on your French fries increase or decrease
the odds of you getting heartburn? Why?
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It would increase your odds of getting heartburn
because ketchup has vinegar (acetic acid), which
is acidic.
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Final Jeopardy
If .5 mol H2SO4 dissolved in 30 L of water is
added to 2 mol HCl dissolved in 10 L of water,
what is the pOH?
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.5 mol / 40 L .0125 M x 2 H .025 M H in
H2SO42 mol / 40 L .5 M H in HCl. .025 M H
in H2SO4 .05 M H in HCl .075 M H
total.-log(.075 M) 1.1214 1.12 12.87pOH
12.87
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