Question

how do you make 340 ml of a 4 m solution from a 20 m stock solution

Answer 1

Answer:

by taking 68 ml of 20 m and diluting it to 340 ml by adding distilled water.

Explanation:

use formula

V1M1=V2M2 to calculate amount of 20 ml solution to be taken.

Answer 2

Answer:

To make a 340 ml of a 4 m solution from a 20 m stock solution, you will need to dilute the stock solution by adding a certain amount of water. The amount of water you need to add can be calculated using the formula:

C1V1 = C2V2

where C1 is the concentration of the stock solution (20 m), V1 is the volume of the stock solution you need to use (unknown), C2 is the concentration of the desired solution (4 m), and V2 is the volume of the final solution you want to make (340 ml).

Rearranging the formula to solve for V1, we get:

V1 = (C2V2) / C1

Plugging in the values we have, we get:

V1 = (4 m x 340 ml) / 20 m

V1 = 68 ml

Therefore, you will need to measure out 68 ml of the 20 m stock solution and add enough water to bring the total volume up to 340 ml. This will give you a 4 m solution. It's important to mix the solution thoroughly to ensure that the concentration is uniform throughout.

Learn more about stock solution :

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