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Misc Chem

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QuestionAnswer
molarity equation (moles of solute)/liter of soln
how to find moles from molarity moles = molarity (M) * volume
equation for changing molar concentration of a soln M1V1 = M2V2
(moles of solute) / (mass of solvent, kg) molal (m)
percent by mass equation (mass of solute) / (total mass of soln) * 100
parts per million equation (mass of solute) / (total mass of soln) * 1,000,000
_______ solutes dissolve polar solvents polar
_______ solutes dissolve nonpolar solvents nonpolar
what do precipitation rxns create? salts
_______ ions are ions that do not take part in the rxn spectator
what are 5 insoluble compounds? 1. carbonates 2. phosphates 3. chromates 4. sulfides 5. hydroxides (except barium)
what are some soluble compunds? compounds containing 1. the alkali metal ions 2. ammonium ions 3. halides (except silver, mercury 2 and Lead 2) 4. sulfates (except silver, calcium, stronium, barium and lead)
_______ acids dissociate completely in H2O, while _______ acids dissociate only partially strong; weak
________ acids increase H+ conc in a soln, while _______ do not have H+ but will generate it in a soln Arrhenius; Lewis
what indicator is used to determine acidity methyl red; yellow --------> red (strongly acidic)
what indicator is used to determine changes in base conc? phenol red; yellow --------red (strongly basic)
electrons are _________ in a reduction rxn and ________ in an oxidation rxn gained; lost
the ________ agent gains electrons, while the _________ agent looses electrons oxidizing; reducing
oxidation e- lost
reduction e- gained
the molecule to gain e- reduced; oxidizing agent
the molecule to donate e- oxidized; reducing agent
what method can be used to determine the number of moles of an unknown titration by a known reagent
Created by: wynnhall
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