A lab technician is trying to prepare 100. mL glucose solution with a concentration of 5.0%...

A lab technician is trying to prepare 100. mL glucose solution with a concentration of 5.0% by mass for a clinical trial. How many grams of glucose should he use to prepare this 100-mL solution? Assume the density of 5% glucose solution is previously reported as 1.02 g/mL.

Expert Solution

5.0% by mass of glucose solution is 5.0 g of Glucose present in 100 g of solution

Given density of solution , d= 1.02 g/mL

So Volume of solution , V = mass / density

= 100 g / 1.02 (g/mL)

= 98.0 mL

From the data 100g = 98.0 mL of the solution contains 5.0 g of glucose

100.0 mL of the solution contains M g of glucose

M = ( 100.0x5.0) / 98.0

= 5.1 g

Therefore the mass of glucose should present is 5.1 g

queen_honey_blossom answered 1 year ago

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