How many grams of glucose will be required to have solution having 10%w/w concentration?
Options:
A) 30 grams
B) 60 grams
C) 10 grams
D) 20 grams
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2 Answers
If a solution is described by 10% glucose in water by mass, it means that 10 g of glucose is dissolved in 90 g of water resulting in a 100 g solution.
So option (C) is correct
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Answered
What does w/w % actually means ?
It means that mass of solute present in 100g of solution
.
.
Now coming to the question
10% w/w glucose solution
Therefore, from above we know that
mass of solution=100g
mass of solute(glucose)=10g
So, the answer is C
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Answered