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Postby MichelleTran3I » Thu Oct 05, 2017 12:40 am

TA medical researcher investigating the properties of intravenous solutions prepared a solution containing 0.278 m C6H12O6 (glucose). What volume of solution should the researcher use to provide 4.50 mmol C6H12O6?

Can someone explain how to begin this problem? I do not know how to approach it without the original volume the solution, thanks!

Kayla Ikemiya 1E
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Re: G11

Postby Kayla Ikemiya 1E » Thu Oct 05, 2017 12:47 am

convert mmol to moles. Rearrange the equation M= n/v to V=n/m.

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Re: G11

Postby JasonNovik3A » Thu Oct 05, 2017 10:01 am

First, you have the molarity (.278) . That's a given. Check mark. You have the mmol, which you convert to mol to come out to .0045 mol. Check Mark, that's given to you. Now all you have to do is find the volume.

You have the formula Molarity = Mol divided by Liters (Volume). Boom boom, you plug in the numbers.

.0045 divided by .278 = 1.62 x 10^-2 Liters. Whala! Answer.

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