Question

One of the following is not a proper way of preparing 0.025M solution from 1.00M stock solution.
2.5 mL of stock solution is diluted to 100mL
25 mL of stock solution is made up to 1000mL
12.5 mL of the stock solution is made up to 500mL
12.5 mL of the stock solution is made up to 750mL

Answer 1

^{2,5/100= 0,025 М
25/1000= 0,025 М
12,5/500= 0,025 М
12,5/750= 0,0167 М}
Answer: wrong answer is 12.5 mL of the stock solution is made up to 750mL