Question

100 mL 2 M KOH solution is mixed with 400 ml of 5 M KOH solution. The molarity of resultant solution becomes 4.4 M 3.2 M 0 2.5 M 3.8 M​

Answer 1

Answer:

4.4

Explanation:

First find number of moles of solutions

= olarity multiply olume (in liters)

1) No of moles = 2 multiply 0.1 = 0.2

2) No of moles = 5 multiply 0.4 = 2

After we mix these two solution

= 0.2 + 2 = 2.2 moles

= 0.1L + 0.4L = 0.5L

of Molarity = No of moles divided by Volume in liters

M = 2.2/0.5 = 4.4

Hence 4.4 will be of solution