Airagomez710idn
Answered

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Problem 2. How many grams of glucose (CHO) are needed to prepare 400mL of a 5% glucose solution? with solution
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Sagot :

Princessniolelargostidn

You would need 20g of glucose.

Since we want a 5% glucose solution, the mass (grams of glucose) divided by the volume (mL of the solution) should be 5% (0.05).

From the given 400mL, the equation would then be:

x g/ 400 = 0.05 g/mL

x g = (400mL)(0.05 g/mL)

x g = (400mL)(5g / 100mL)

x = 20 g

When doing problems like this, I always find it helpful to keep track of your units. They'll help guide you on what is supposed to be divided or multiplied.

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