Answer:
Explanation:
Given parameters:
Volume of solution = 575mL
Concentration of solution = 0.9M
New volume = 1.25L
Unknown:
New concentration = ?
Solution:
Since the number of moles remains the same, we can use this parameter to solve the problem given.
Concentration = 
Number of moles of solution before diluting = concentration x volume
Number of moles = 0.9 x 575 x
= 1.565 moles
New concentration =
=
= 1.25M