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55 Cards in this Set
- Front
- Back
Colligative Property of a Soln
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physical properties that depend on solute particles dissolved in a solvent
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Formula for temperature change
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(delta)T=Kfm
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What catalyst is used to decompose H2O2?
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yeast
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What is the decomposition formula of H2O2?
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H2O2+yeast=>2H2O+O2
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2 Characteristics of Green Chemistry
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~Prevent waste
~Increase energy efficiency |
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For most rxns, heat ______ the reaction rate
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increases
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4 Factors that affect the rate of a rxn
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1. nature of reactants
2. temperature 3. concentration 4. catalyst |
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Dynamic Equilibrium
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Forward and reverse rxn rate are equal
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When ammonia is added to AgCl which way will the equilibrium shift?
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to the left
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Name the acid in vinegar
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acetic acid
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In aqueous soln sodium chloride is...
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neutral
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In aqueous soln magnesium oxide is...
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basic
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In aq soln, sodium carbonate is...
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basic
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In aq soln aluminum chloride is...
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acidic
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In aq soln, sodium nitrate is...
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neutral
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Y does Hg react w/ HNO3 and not HCl?
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HNO3 is an oxidizing acid
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Why boil dH2O?
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water contains dissolved CO2
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What indicator is used in Exp. 29?
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Methyl orange
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Molar solubility expression for Mg(OH)2
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Ksp=[Mg][OH-]2
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Oxidation is ____ of e-
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loss
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Reduction is ____ of e-
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gain
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What soln was used to make a salt bridge?
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KNO3
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Why must you have a salt bridge?
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It would be an open circuit
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What flows through the salt bridge?
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ions
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How does one solve for reduction potential?
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E-cell=E-cathode-E-anode
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Half life of Uranium-238
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5 billion years
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Half life of Uranium-238
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5 billion years
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Uranium emits _____ particles
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alpha
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Background radiation
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radiation from cosmic rays, atoms in body, and building materials
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Formula for hexaamminecobalt (II) sulfate
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[Co(NH3)6]SO4
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Dispose cyclohexane in...
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organic
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Dispose gloves used to handle Ba-137 in...
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radioactive
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Dispose Ni2+ complexes in...
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heavy metals
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Dispose ethanol in...
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organic
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Dispose [H2SO4] in...
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sink w/ water
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Dispose Cu (II) nitrate in...
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heavy metals
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Dispose Cl- in..
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organic
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Dispose leftover solid metals in...
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trash can
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Name 2 chemicals that should be used under the fume hood
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HCl
H2SO4 |
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Name 2 flammable chemicals
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Ethanol
acetone |
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When diluting acid, the ____ should be added to the _____
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acid
water |
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True/False: Eye washers are located on every bench
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False
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Cool v. Hot Bunsen burner
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Cool: no inner cone
Hot: inner cone |
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Burets can be read to the nearest ___ mL
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0.05mL
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Ethanol is soluble in _____
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water
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Conc NH3 is located in...
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the green fume hood
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How is conc NH3 labeled?
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NH4OH
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6M H2SO4 is stored in a...
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plastic bottle
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6M H2SO4 is located...
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b/w lab benches
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Color of acetone
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colorless
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Ni(II) ion color
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green
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Ag(I) ion color
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colorless
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Color of starch+iodine
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blue-black
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What occurs in anode?
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oxidation
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What occurs in the cathode?
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reduction
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