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Nitella [24]
3 years ago
15

PLEASE HELP!!!!!!!!!!

Chemistry
1 answer:
Olegator [25]3 years ago
8 0
I believe the answer is 3
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How many grams of glucose is dissolved in 2.88% glucose solution if 1944 grams of water is used???? The answer is C. 56 grams 
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So..would it be A? Helppp
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How many milliliters of a 25% (m/v) NaOH solution would contain 75 g of NaOH?
Luda [366]

Answer:

E  3.0 x 10² mL.

Explanation:

Hello there!

In this case, according to the formula for the calculation of the mass-volume percent:

\% m/V=\frac{m_{solute}}{V_{solution}}*100\%

Whereas it is necessary to know the mass of the solute and the volume of the solution. Thus, given the mass of NaOH as the solute, the volume of the solution would be:

V_{solution}=\frac{m_{solute}}{\% m/V}*100\%

Then, by plugging in we obtain:

V_{solution}=\frac{75g}{25\%}*100\%\\\\V_{solution}=3.0x10^2mL

Thus, the answer is E  3.0 x 10² mL.

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