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4 years ago

Which is an example of a solution? A.tea B.salad dressing C.salad D.milk

Chemistry

2 answers:

MatroZZZ [7]4 years ago

6 0

The correct answer is A.Tea

podryga [215]4 years ago

4 0

A since it has 2 or more things mixed with it.....

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Wastewater discharged into a stream by a sugar refinery contains 3.40 g of sucrose (C12H22O11) per liter. A government-industry

Ipatiy [6.2K]

Answer: The pressure that must be applied to the apparatus is 0.239 atm

Explanation:

To calculate the osmotic pressure, we use the equation for osmotic pressure, which is:

$\pi=iMRT$

or,

$\pi=i\times \frac{m_{solute}}{M_{solute}\times V_{solution}\text{ (in L)}}}\times RT$

where,

$\pi$ = osmotic pressure of the solution

i = Van't hoff factor = 1 (for non-electrolytes)

$m_{solute}$ = mass of sucrose = 3.40 g

$M_{solute}$ = molar mass of sucrose = 342.3 g/mol

$V_{solution}$ = Volume of solution = 1 L

R = Gas constant = $0.0821\text{ L atm }mol^{-1}K^{-1}$

T = temperature of the solution = $20^oC=[20+273]K=293K$

Putting values in above equation, we get:

$\pi =1\times \frac{3.40g}{342.3g/mol\times 1}\times 0.0821\text{ L. atm }mol^{-1}K^{-1}\times 293K\\\\\pi =0.239atm$

Hence, the pressure that must be applied to the apparatus is 0.239 atm

3 0

4 years ago

Describe the relationship between the solubility rate of a gas and temperature. 25 points

daser333 [38]

Answer:

as temperature increases, solubility of gas decrease

7 0

3 years ago

85g=kg? Unit conversion.

Paraphin [41]

Answer:

0.085 kg

Explanation:

1 g=0.001 kg OR 1 kg=1000 g

so $\frac{85}{1000}$ =0.085 kg

3 0

3 years ago

Can someone help im not good at science

Digiron [165]

Answer:

Explanation:

The products are what come out of the mix.

6 0

3 years ago

Read 2 more answers

An idle ball on a hilltop, though not moving, contains _____.

vampirchik [111]

potential energy because it has a potential to roll down the hill, creating kinetic energy. it is idle

6 0

4 years ago