UOW CHEM 162A PRACTICE EXAM SOLUTION MID TERM II, PRACTICE EXAM QUESTIONS AND
ANSWERS
Useful equations: pH = pKA + log ([A-]/[HA]) Kp = Kc(RT)Δn Kw = 1 x 10-14
1.) The following reaction is known as the Haber process which is responsible for nearly 80% of the
nitrogen found in human tissues, which set of conditions would give more product?
N2 (g) + 3 H2 (g) 2 NH3 (g) ΔH = –46.19 kJ
A) High pressure and high temperature
B) Low pressure and low temperature
C) Low pressure and high temperature
D) High pressure and low temperature
2.) Write the formula for the conjugate base for HCHO2.
A) CHO -
B) CO -
C) HCHO2
D) H2CHO +
E) none of these
ANSWERS
Useful equations: pH = pKA + log ([A-]/[HA]) Kp = Kc(RT)Δn Kw = 1 x 10-14
1.) The following reaction is known as the Haber process which is responsible for nearly 80% of the
nitrogen found in human tissues, which set of conditions would give more product?
N2 (g) + 3 H2 (g) 2 NH3 (g) ΔH = –46.19 kJ
A) High pressure and high temperature
B) Low pressure and low temperature
C) Low pressure and high temperature
D) High pressure and low temperature
2.) Write the formula for the conjugate base for HCHO2.
A) CHO -
B) CO -
C) HCHO2
D) H2CHO +
E) none of these
