The question is: To neutralize 20ml of 0.1M HCl solution, 10ml of NaOH solution of concentration x mol/l is required. What is the value of x?
Answer: The value of x is 0.2 M.
Explanation:
Given: [tex]V_{1}[/tex] = 20 mL, [tex]M_{1}[/tex] = 0.1 M
[tex]V_{2}[/tex] = 10 mL, [tex]M_{2}[/tex] = x
Formula used is as follows.
[tex]M_{1}V_{1} = M_{2}V_{2}\\0.1 M \times 20 mL = x \times 10 mL\\x = 0.2 M[/tex]
Thus, we can conclude that the value of x is 0.2 M.
