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Diano4ka-milaya [45]
2 years ago
14

Given that a 19.00 g milk chocolate bar contains 11.50 g of sugar, calculate the percentage of sugar present in 19.00

Chemistry
1 answer:
Jet001 [13]2 years ago
6 0

Explanation:

check the steps in the attached image

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For which of the following aqueous solutions would one expect to have the largest van’t Hoff factor (i)? a. 0.050 m NaCl b. 0.50
ira [324]

Answer:

The van't hoff factor of 0.500m K₂SO₄ will be highest.

Explanation:

Van't Hoff factor was introduced for better understanding of colligative property of a solution.

By definition it is the ratio of actual number of particles or ions or associated molecules formed when a solute is dissolved to the number of particles expected from the mass dissolved.

a) For NaCl the van't Hoff factor is 2

b) For K₂SO₄ the van't Hoff factor is 3 [it will dissociate to give three ions one sulfate ion and two potassium ions]

Out of 0.500m and 0.050m K₂SO₄, the van't hoff factor of 0.500m K₂SO₄ will be more.

c) The van't Hoff factor for glucose is one as it is a non electrolyte and will not dissociate.

7 0
3 years ago
How many moles are in 15.5-g SiO2
DochEvi [55]

Answer:

0.26 moles

Explanation:

Number of moles = mass/molar mass

Mass of SiO2 = 15.5g

Molar mass of SiO2 = 60.08g/mol

Number of moles = 15.5g/60.08g/mol

=0.257

= 0.26 moles

8 0
3 years ago
Is mixing paint a physical change if it is why
Anarel [89]
Paint changes color to the physical eye.
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How does the solubility of a gas change with decreasing temperature?
dem82 [27]
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Answer ASAP plzzz ! Will give Brainliest !
vesna_86 [32]

Answer:

27 mL

Explanation:

Please see the step-by-step solution in the picture attached below.

Hope this answer can help you. Have a nice day!

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