Question

3. What is the molarity of NaOH solution if 250 mL of it contains 1 mg of NaOH?
(1) 10-M
(2) 10-2 M
(3) 104 M
(4) 10-3 M

Answer 1

Answer:

10^-4

Explanation:

molarity=given wt.×1000

------------- ---------

mol. wt. vol. in ml

=}. 1×10^-3 ×1000

--------------. ---------. =10^-4

40 250