Samantha added 125 mL of water to 100mL of a stock solution to make 225 mL of a 0.75 M Solution. The Concentration of the original stock solution will be __ than that of the mixed solution.

A. Greater than

B. Less than

C. Equal to

A.Greater than

Explanation:

According to the neutralization law,

where,

= molarity of stock  solution = ?

= volume of stock  solution = 100 ml

= molarity of dilute solution = 0.75 M

= volume of dilute solution = 225 ml

Thus Concentration of the original stock solution will be greater than that of the mixed solution.

h let me think

each  column  of the  table  is called a group. elements in a group share similar properties. groups are  read  from  top  to  bottom. metal. metalloid. nonmetal. solid. liquid. gas. fe. hg. o.  2. 3. 4. 5. 6. 7. 8. 9.  2. beryllium. 9.012. 4.  sodium. 22.990.  11. 3.  magnesium. 24.305.  12.  potassium. 39.098.  19. 4.  calcium. 40.078.  20. i guess  i