Answer to Question #150816 in Organic Chemistry for Sarah

Question

I want to achieve the 10mcg concentration per 60ml of juice

The powder spec is

2500mcg/g concentration
Molecular mass 384.65g/mol

Answer 1

Target solution

mass = 10 microgram

Volume = 60ml

.: Concentration = 10/60 = 0.167microgram/gram

Powder stock

Concentration = 2500 microgram/gram

Using, $C_1V_1 = C_2V_2$

0.167 × 60 = 2500 × V2

V2 = 0.167×60/2500 = 0.004

This means that you take 0.004ml of the stock and put it in 59.996ml of water for your target solution to have a concentration of 0.167mcg/ml.