Posted by **Jay** on Monday, July 6, 2009 at 6:28pm.

A mixture of water and sucrose is 10% sucrose by weight. How many grams of pure sucrose must be added to a 200-gram sample of this mixture to produce a mixture that is 20% sucrose?

- Math -
**drwls**, Monday, July 6, 2009 at 6:46pm
Your original 10%, 200 g mixture has 180 g of water and 20 g of sucrose. Let x be the number of grams of sucrose you need to add. The reqiuorement is

(20 + x)/180 + x) = 0.20

Solve for x

- Math -
**Reiny**, Monday, July 6, 2009 at 7:14pm
But, aren't we adding the x grams to the original 200 ?

so I would say:

20+x = .2(200+x)

for x = 25

## Answer This Question

## Related Questions

- chemistry - a sucrose solution with a volume of B uL has a density of C g/ml. ...
- Chem - How will you make a 200 mL solution of 1 mM sucrose from a 0.1 M sucrose ...
- AP Chemistry - What percent (by mass) of granulated sugar is fructose, and what ...
- Chemistry - How many grams of sucrose (C12H22O11) must be dissolved in 200 g ...
- Chemistry - How many grams of sucrose (C12H22O11) must be dissolved in 200 g ...
- chemistry - The molar mass of sucrose, or table sugar, is 342 grams. Calculate ...
- Chem - The hydrolysis of sucrose into glucose and fructose in acidic water has a...
- AP Chemistry - How many grams of sucrose (C12H22O11) must be dissolved in 60 g ...
- Chemistry - How many grams of sucrose (C12H22O11) must be dissolved in 60 g ...
- chemistry - Sucrose is commonly known as table sugar. The formula is C12H22O11. ...

More Related Questions