Posted by **Sara** on Friday, January 20, 2012 at 2:38pm.

I need the equation for determining how to decide : You are given a dosage of 30m/kg to be given every twelve hours, how much is given (in grams) with each dose. I know the answer is obviously 15 m/kg but what is it in grams?

- Chemistry -
**DrBob222**, Friday, January 20, 2012 at 6:45pm
What does m stand for? 15m = what?

- Chemistry -
**Sara**, Friday, January 20, 2012 at 9:49pm
The question just gives me the dosage of 30 m/kg for every twelve hours and asks what the dosage would be in grams.

- Chemistry -
**DrBob222**, Friday, January 20, 2012 at 11:06pm
I'm not familiar with m for anything but meters, certainly not a dosage in grams. I thought it might be mg and the g was omitted.

- Chemistry -
**Sara**, Saturday, January 21, 2012 at 10:33am
I'm sorry, let me re ask this question and tell you what I've come up with ( I work 11pm-7am and do not sleep in daylight hours)

Given 30mg/kg and need grams per dose with dosage every twelve hours.

Here's what I've attempted: need to change mg/kg to grams -->

30mg/kg *1000g/1 kg * 1g/1000mg

the mg with the thirty is canceled out by the mg with the 1000 and the kg is canceled out by the kg with the one( the denominator cancels the numerator)

the 1000/1000 cancels each other leaving you with 30 grams - did I lose you, because I'm lost. You then divide 30grams by 2 because every twlve hours would be twice a daymaking the answer 15 grams per dose - what do you think?

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