Question

In: Chemistry

You are given a stock solution of 100 mM of benzamidine. What volume of this solution...

You are given a stock solution of 100 mM of benzamidine. What volume of this solution do you need to add to what volume of distilled water to make 25 mL of a 2 mM solution?

Expert Solution

We have the original solution that conatin $100mM$ of benzamidine.

To make it dilute of $2mM$ solution we have to take $2mL$ of $100mM$ solution and $98mL$ of distilled water.

i.e $2mM$ solution= $2mL$ of $100mM$ solution + $98mL$ of distilled water.

To get the $25mL$ of $2mM$ solution , we have to take the $\frac{1}{4}th$ of the both solution and water.

Hence required amount of water is :

$\frac{98}{4}=24.5mL$

the required volume of solution is

$\frac{2}{4}=0.5mL$

Thus,to get the $25mL$ of $2mM$ solution we need $24.5mL$ of water and $0.5mL$ of solution of benzamidine.

queen_honey_blossom answered 3 years ago

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