Which of the following solutions has a molarity different from the rest?

a. 6 N H3PO4
b. 4 N Ca(OH)2
c. 8 N HC2H3O2
d. 2 N NH40H

1 answer

N = #H or OH*M or
M = N/#H or OH
For H3PO4. 6N/3 = 2M
For Ca(OH)2. 4N/2 = 2
etc.
M =