How do you make 300 ml of a 2M solution from a 50 M stock solution?

Use the dilution formula of

c1v1 = c2v2
c = concn
v = volume
300mL x 2M = 50M x mL
Solve for mL of stock.

Thanks

To make a 300 ml 2M solution from a 50 M stock solution, you can follow these steps:

Step 1: Calculate the volume of stock solution needed.
To do this, we use the formula: C1V1 = C2V2, where C1 and V1 are the concentration and volume of the stock solution, and C2 and V2 are the concentration and volume of the desired solution.

In this case, C1 = 50 M, V1 is unknown, C2 = 2 M, and V2 = 300 ml.
Plugging these values into the formula, we get: (50 M)(V1) = (2 M)(300 ml).

To solve for V1, divide both sides of the equation by 50 M: V1 = (2 M)(300 ml) / 50 M.

Step 2: Calculate the volume of stock solution needed.
Now we can calculate the volume of the stock solution required.
V1 = (2 M)(300 ml) / 50 M = 12 ml.

Therefore, you will need to take 12 ml of the 50 M stock solution and add it to enough solvent (such as water) to make a final volume of 300 ml in order to obtain a 2M solution.