Benzalkonium chloride 17% w/v . . . . . qs Water qs . . . . . . . . . . . . . . . . . . . . . . 120 mL M. ft . solution such that 2 tbsp added to a pint of water will yield a 1:750 solution. How many milliliters of the 17% w/v stock solution will be needed to prepare the 120 mL?
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Benzalkonium chloride 17% w/v . . . . . qs
Water qs . . . . . . . . . . . . . . . . . . . . . . 120 mL
M. ft . solution such that 2 tbsp added to a pint of water will yield a 1:750 solution.
How many milliliters of the 17% w/v stock solution will be needed to prepare the 120 mL?
| a |
2.68 mL |
|
| b |
7.90 mL |
|
| c |
15.80 mL |
|
| d |
20.40 mL |
|
| e |
6.28 mL |
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