Which solution has the same number of moles of KCl as 75.00 mL of 0.250 M solution of KCl?
A) 20.0 mL of 0.200 M solution of KCl
B) 25.0 mL of 0.175 M solution of KCl
C) 129 mL of 0.145 M solution of KCl
D) 50.0 mL of 0.125 M solution of KCl
E) 100 mL of 0.0500 M solution of KCl
Question 2
What is the formula of borax?
A) H3BO3
B) H2B4O7
C) P5O8
D) B2O3
E) Na2B4O7 10H2O