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The molecular weight of methylene blue is 320 g/mol. The concentration of the original sample was...

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Biology

The molecular weight of methylene blue is 320 g/mol. Theconcentration of the original sample was 0.005 mg/ml in 10 ml.Determine the molarity (M) of your original sample and eachdilution.

Original:
Dilution 1 (1:2 add 3mL of methylene blue + 3mL of water) :
Dilution 2 (1:4 use 3mL of of 1:2 solution + 3mL of water) :
Dilution 3 (1:8 use 3mL of 1:4 solution + 3 mL of water) :
Dilution 4 (1:10 use 0.5 ml of the original methylene blue + 4.5 mLof water) :

Please show all work!!

Answer & Explanation Solved by verified expert
4.4 Ratings (983 Votes)
Molarity number of molesvolume of solution in litresnumber of moles mass in gramgram molecular massgram molecular mass 320 gmolmass concentration of original solution volume of the solutionvolume of the    See Answer
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