by angie
(las vegas)

How many ml of a stock 4% solution should be used to make 3 pints of solution with 100 mg per liter?

 Mar 27, 2011 Algebra by: Keith So, what is 100mg in 1 Liter?Well, 1000mg/100mL = 1% = .01so, 100mg/100mL = .1% = .001So 100mg/1000mL = .01% = .0001As such, our setup is as follows(.04)(X) = (1440)(.0001)Now do the math. ps. - I know that 1 pint is really 473 mL, but for training purposes we keep the numbers rounded for memorization purposes. Thanks -Keith

 Mar 26, 2011 RIGHT ANSWER by: Anonymous THIS IS RIGHT..

 Mar 26, 2011 125mL by: Sarah I get the right answer for the question at the top, but for the one asked by Bonnie, I've worked the problem 2 different ways and I get 125 ml either way. I'm I doing something wrong or is this the right answer?

 Mar 24, 2011 need 3.6 ml of 4% solution by: Anonymous Would you explain how you arrived at the final concentration percentage? Thanks.

 Mar 16, 2011 need 3.6ml of 4% solution by: Anonymous use: IV x IF = FV x FSIV = ?IF = 4%FV = 3pints = 3 x 480ml = 1440mlFS = 100mg/1000ml = 10mg/100ml = 0.010g/100ml = 1:100 or 0.01%IV x IF = FV x FSX x 4% = 1440 x 0.01%X = 1440x 0.01/4 = 3.6 ml

 Jan 31, 2011 Pharmacy Tech Math help by: Anonymous could someone show me a simple way to do this? Its been years since I've done any math or algebra.

 Dec 10, 2010 Dilutions by: Bonnie How much of a 40% stock solution is needed to make 200 ml of a 25% solution

 Dec 02, 2010 question reply by: Anonymous 25 percent should be used for three liters.

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