Question

How much of a 14% solution is needed to make 25 ml of a 6% solution? Record your answer to one decimal place.

A) 10.7 ml
B) 14.3 ml
C) 17.9 ml
D) 21.4 ml

Answer 1

To make 25 ml of a 6% solution, approximately 10.7 ml of a 14% solution is needed.

Step-by-step explanation:

To find the volume of a 14% solution needed to make 25 ml of a 6% solution, you can use a dilution equation. Let x be the volume of the 14% solution needed.

Using the equation (0.14)(x) = (0.06)(25), you can solve for x:

• 0.14x = 0.06 * 25
• 0.14x = 1.5
• x = 1.5 / 0.14
• x ≈ 10.7 ml

Therefore, approximately 10.7 ml of the 14% solution is needed.