Inorganic Chemistry Final Exam UPDATED Study Guide QUESTIONS AND CORRECT ANSWERS

Inorganic Chemistry Final Exam
UPDATED Study Guide QUESTIONS
AND CORRECT ANSWERS
- Which of the compounds below is an Arrhenius Base?
A. H2BrO3
B. RbOH
C. HI
D. Al(OH2)6 - CORRECT ANSWERS RbOH


An Arrhenius Base is a substance that, when dissolved in an aqueous
solution, increases the concentration of hydroxide, or OH-, ions in the
solution (Ex. RbOH, LiOH, KOH, NaOH, Sr(OH)2)


Given the information below, which reactions would be MOST likely
to proceed in the forward direction?


Acid Strength: HF>HNO2>HC2H3O2>HCN


Reaction 1: HC2H3O2 + F- >>>>
Reaction 2: HF + NO2- >>>>>>
Reaction 3: HC2H3O2 + NO2- >>>>>>
Reaction 4: HF +CN- >>>>>>


A. Reaction 1 & 3
B.. Reaction 2 & 4

, C. Reaction 3 & 4
D. Reaction 1 & 2 - CORRECT ANSWERS B.. Reaction 2 &
4


This is because strong acids turn into weak conjugate bases which are
more stable. The other two reactions have bases turning into a
stronger conjugate acid.


Which of the following has the compounds arranged correctly in
order of INCREASING acid strength (I.e. Weakest to Strongest)?


A. HBr<HF<H2S<H2O
B. H2O<HBr<H2S<HF
C. HBr<HF<H2O<H2S
D. H2O<H2S<HF<HBr - CORRECT ANSWERS D.
H2O<H2S<HF<HBr


This is because Acidity increases as you go right and up the periodic
table. But for Halogens, the order is flipped. So HI is the strongest
and HF is the weakest out of the group.


Which of the following has the compounds arranged correctly in
order of DECREASING acid strength (i.e. strongest to weakest)?


A.HIO2>HBrO2>H2ClO4
B. H2SeO4>H2SO4>H3AsO4
C. HIO4>HBrO4>HClO4