How many g in 10.0 mEq of Mg2+?
A) 0.122 g
B) 24.3 g
C) 12.3 g
D) 0.486 g
E) 0.243 g
Question 2
Use the Hf and Hrxn information provided to calculate Hf for SO3(g):
Hf (kJ/mol) 2 SO2(g) + O2(g) 2 SO3(g) Hrxn = -198 kJ
SO2(g) -297
A) -792 kJ/mol
B) -248 kJ/mol
C) -495 kJ/mol
D) -578 kJ/mol
E) -396 kJ/mol
Question 3
Which characteristics correctly describe an electron?
A) approximate mass 1 amu; charge +1; inside nucleus
B) approximate mass 1 amu; charge -1; inside nucleus
C) approximate mass 1 amu; charge 0; inside nucleus
D) approximate mass 5 10-4 amu; charge 0; inside nucleus
E) approximate mass 5 10-4 amu; charge -1; outside nucleus
Question 4
Germanium has four valence electrons.
Indicate whether the statement is true or false
