Explanation:

Assuming 5% (w/v), you need 5 grams sucrose per 100 ml of solution (by definition). Thus, for 400 ml of solution, you need 4 x that amount or 4 x 5 = 20 grams. Done another way ...

400 ml x 5 g/100 ml = 2000/100 = 20 g

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Trevor Hodgson

, knows English

Answered Dec 5, 2020

Originally Answered: How many grams of glucose (C6H12O6) are needed to prepare 400ml of a 5% glucose solution?

Stating a “5% solution “ has no meaning . Is it

5%m/m

5% m/v

or some other definityion

BUT - seeing that you ask about :

mass of glucose

volume of solution It seems clear that you are asking about a 5%m/v solution

A 5% m/v solutiuon contains 5 g glucose in 100 mL of solutiuon

You want to produce 400 mL of solution

Therefore you require 5g / 100 mL solution * 400 mL solution = 20 g glucose

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Wayne Henderson

Answered Dec 1, 2020

Originally Answered: How many grams of glucose (C6H12O6) are needed to prepare 400ml of a 5% glucose solution?

1.) The percent by mass: 21.2%

2.) You would need 20g of glucose.