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3 years ago

Powdered drink mix dissolved in water.

Chemistry

2 answers:

Tasya [4]3 years ago

4 0

Yes, just like dissolving salt in water and evaporating it. You would be left with the salt crystals.

seropon [69]3 years ago

3 0

Answer: Yes

Explanation: When powdered drink is mixed in the water, saturated solution will be formed. After some time, a point would come when the powdered drink would stop getting mix into the water. That point is known as saturation point. This point would give a clear solution as all the solute particles are dissolved in the solvent completely.

Now if we let all the liquid evaporate out of the pitcher, then we would be able to see only those particles which would not be dissolved into the solution completely.

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Consider a mixture of NaCl and NaNO3 that is 31.8% Na by mass. Calculate the percentage by mass of NaCl in the mixture.

lutik1710 [3]

Answer: The percentage by mass of NaCl in the mixture is 38.5 %

Explanation:

To calculate the mass percentage of element in compound, we use the equation:

$\text{Mass percent of element}=\frac{\text{Mass of element}}{\text{Mass of compound}}\times 100$ .......(1)

For NaCl:

Mass of sodium element = 23 g

Mass of NaCl = 58.5 g

Putting values in equation 1, we get:

$\text{Mass percent of sodium element}=\frac{23g}{58.5g}\times 100=39.32\%$

Mass fraction of sodium metal in NaCl = 0.3932

For $NaNO_3$ :

Mass of sodium element = 23 g

Mass of $NaNO_3$ = 85 g

Putting values in equation 1, we get:

$\text{Mass percent of sodium element}=\frac{23g}{85g}\times 100=27.1\%$

Mass fraction of sodium metal in sodium nitrate = 0.271

Let us assume the mass fraction of NaCl in the mixture is 'x'

So, the mass fraction of $NaNO_3$ in the mixture will be '(1-x)'

We are given:

Percent by mass of Na in the mixture = 31.8 %

Mass fraction of Na in the mixture = 0.318

Evaluating the mass fraction of NaCl in the mixture:

$[(x\times 0.3932)+((1-x)\times 0.271)]=0.318$

x = 0.385

Percent by mass of NaCl in the mixture will be = $(0.385\times 100)=38.5\%$

Hence, the percentage by mass of NaCl in the mixture is 38.5 %

4 0

3 years ago

If you were testing how well different laundry soaps clean your clothes the control group would be

Svetlanka [38]

The original clothes with no detergent on it.

8 0

4 years ago

Which change would result in a stronger electromagnet?

lidiya [134]

Yep its B i did the test

8 0

3 years ago

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A landslide A. weathering B. erosion C. deposition

likoan [24]

Answer:

Erosion

I hope u find it helpful

5 0

3 years ago

The polyatomic ion with the formula CN- is called

Zinaida [17]

The correct answer is cyanate.

The polyatomic ion with the formula CN⁻ is called cyanate. A polyatomic ion has two or more atoms bonded together.

CN⁻ contains the cyano functional group wherein a carbon atom forms a triple-bond to a nitrogen atom. CN⁻ is a polyatomic anion that is present in inorganic compounds.

4 0

3 years ago

Read 2 more answers