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Question: a sachet contains 50 ml of solution and will be...

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A sachet contains 50 mL of solution and will be mixed with 500 mL of normal saline, which has a final concentration of 0.02chlorhexidine. You have only chlorhexidine gluconate solution BP, containing 20% w/v chlorhexidine gluconate. 

Calculate the volume of chlorhexidine gluconate solution BP which needs to be included in each sachet. (MW of chlorhexidine is 505; MW of chlorhexidine gluconate is 898)

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