Author Question: The value of G at 25 C for the formation of calcium chloride from its constituent elements, Ca (s) + ... (Read 47 times)

jCorn1234 · **on:** Aug 27, 2018

The value of G at 25 C for the formation of calcium chloride from its constituent elements, Ca (s) + Cl2 (g) CaCl2 (s) is ________ kJ/mol.

A) -795.8
B) +795.8
C) +763.7
D) +748.1
E) -748.1

Question 2

A 25.0-mL sample of 0.150 M hypochlorous acid is titrated with a 0.150 M NaOH solution. What is the pH after 13.3 mL of base is added? The Ka of hypochlorous acid is 3.0 10-8.

A) 7.25
B) 1.34
C) 4.43
D) 7.58
E) 7.46