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Chemistry 120 Exam 2 Latest Update - Actual Exam from Credible Sources with 100 Questions and Verified Correct Answers Golden Ticket to Guaranteed A+ Verified by Professor
(NH4)3PO4 (aq) + FeBr3 (aq) ->
Is it soluable or insoluable? - CORRECT ANSWER: NH4Br(aq) + FePO4
Reaction will form
100.0 mL of 6.0 M HCL are added to 50.00 mL of 3.0 M HCl. What is the molarity of the
resulting solution? - CORRECT ANSWER:
175 g MgCl2 (Molar mass= 95.31 g/mol) are dissolved in 850.0 mL H2O.A.) What is the molarity of the MgCl2?
B.) What is the molarity of the Cl- ion? - CORRECT ANSWER:
25.0 mL of 12.1 M HCL is diluted to 500.0 mL. Calculate the final M.
How many mL of a 15.9 M HNO3 solution are required to prepare 2.00 L of a 6.00 M
HNO3 solution? - CORRECT ANSWER:
A chemical equation consists.. - CORRECT ANSWER: of a list of the reactants involved, a reaction arrow " ->" indicating the direction of the reaction and a list of products formed.
A common concentration unit is.. - CORRECT ANSWER: Molarity (M)
A student has 50.0 mL of a 1.40 M CuSO4 solution. How much water must be aded in order to prepare a 0.200 M CuSO4 solution? - CORRECT ANSWER: 1 / 2
Acid-Base Reaction: - CORRECT ANSWER: Most A/B reactions are neutralization reactions which produce an ionic compound and usually water.
Acid: - CORRECT ANSWER: a species which increases the [H+] or [H3O+] when dissolved in water. (Arrhenius definition)
Base: - CORRECT ANSWER: a species which increases the [OH-] when dissolved in water (Arrhenius definition)
C4H10 +O2 -> CO2 + H2O - CORRECT ANSWER: 2C4H10 + 13 O2 -> 8 CO2 + 10
H2O
C6H14O4 +O2 -> CO2 + H2O - CORRECT ANSWER: 2C6H14O4 + 15O2 -> 12CO2 +
14H2O
Cu + HNO3 -> Cu(NO3)2 + NO2 +H2O - CORRECT ANSWER: Cu + 4HNO3 ->
Cu(NO3)2 + 2NO2 + 2H2O
CuCl2 + Al -> AlCl3 + Cu - CORRECT ANSWER: 3 CuCl2 + 2Al -> 2AlCl3 + 3 Cu
Dilution: - CORRECT ANSWER: sometimes solutions must be diluted in order to obtain a concentration which is useful in lab.
Express the amount of solute present in a given amount of solvent as.. - CORRECT
ANSWER: concentration
KClO (aq) + CaCl2 (aq) ->
Is it soluable or insoluable? - CORRECT ANSWER: KCl (aq) + Ca(ClO4)2 (aq)
No reaction
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