How many grams are contained in one equivalent of iron (III) ion, Fe3+?
A) 167.6 g
B) 55.85 g
C) 18.62 g
D) 0.0537 g
E) 6.02 1023 g
Question 2
Use the Hf and Hrxn information provided to calculate Hf for IF:
Hf (kJ/mol) IF7(g) + I2(g) IF5(g) + 2 IF(g) Hrxn = -89 kJ
IF7(g) -941
IF5(g) -840
A) 101 kJ/mol
B) -146 kJ/mol
C) -190. kJ/mol
D) -95 kJ/mol
E) 24 kJ/mol
Question 3
Protons possess a ________ charge, and electrons possess a ________ charge.
A) negative, negative
B) negative, positive
C) positive, negative
D) positive, zero
E) zero, positive
