Question

Calculate the amount 0.5 M EDTA solution (MW= 292.24 g/mol) required to make 400 mL of...

Calculate the amount 0.5 M EDTA solution (MW= 292.24 g/mol) required to make 400 mL of 70.0 mM solution?

Homework Answers

Answer #1

To solve this answer we will have to use dilution equation which is given by:

M1V1 = M2V2

where, M1 is initial molarity of the solution

M2 is final molarity of the solution

V1 is initial volume of the solution

V2 is final volume of the solution

We have been given M1, M2 and V2 in the question. Our aim is to find V1.

Substituting the values from the question in the above dilution equation we get,

0.5 V1 = 0.07 400 (Here units on LHS are same as units on RHS, so you need not convert mL into litres)

V1 = (0.07 400)/0.5

V1 = 56 mL

So to make 400 mL of 70 mM EDTA solution, you need to take 56 mL of 0.5 M EDTA solution and dilute it to 400 mL using water.

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