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stellarik [79]
2 years ago
12

if you placed the contents of a packet of powdered iced tea mix into a bottle of water and shook it, which of the following woul

d be true? A. The iced tea mix would dissolve the water. B. The iced tea mix would be the solvent. C. The water would be the solvent. D. The solution would be homogenous if half of the powdered solute sat at the bottom of the bottle.
Chemistry
2 answers:
victus00 [196]2 years ago
3 0
If you placed the contents of a packet of powdered iced tea mix into a bottle of water and shook it, D. The solution would be homogenous if half of the powdered solute sat at the bottom of the bottle.
Sonbull [250]2 years ago
3 0

Answer: Option (C) is the correct answer.

Explanation:

A homogeneous solution is defined as the solution in which solute particles are evenly distributed in a solvent.

A homogeneous solution is a clear solution.

For example, salt dissolved in water is a homogeneous mixture.

On the other hand, a solution in which solute particles are unevenly distributed in a solvent then it is known as a heterogeneous solution.

In a solution, a substance present in small quantity is known as solute and a substance present in large quantity is known as a solvent.

Therefore, when powdered iced tea mix is added into a bottle of water then powdered iced tea is the solute and water is the solvent.

Thus, we can conclude that the statement, water would be the solvent is true.

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A 0.8870 g sample of a mixture of NaCl and KCl is dissolved in water, and the solution is then treated with an excess of AgNO3 t
bagirrra123 [75]

Answer : The percent by mass of NaCl and KCl are, 92.22 % and 7.78 % respectively.

Explanation :

As we know that when a mixture of NaCl and KCl react with excess AgNO_3 then the silver ion react with the chloride ion in both NaCl and KCl to form silver chloride.

Let the mass of NaCl be, 'x' grams and the mass of KCl will be, (0.8870 - x) grams.

The molar mass of NaCl and KCl are, 58.5 and 74.5 g/mole respectively.

First we have to calculate the moles of NaCl and KCl.

\text{Moles of }NaCl=\frac{\text{Mass of }NaCl}{\text{Molar mass of }NaCl}=\frac{xg}{58.5g/mole}=\frac{x}{58.5}moles

\text{Moles of }KCl=\frac{\text{Mass of }KCl}{\text{Molar mass of }KCl}=\frac{(0.8870-x)g}{74.5g/mole}=\frac{(0.8870-x)}{74.5}moles

As, each mole of NaCl and KCl gives one mole of chloride ions.

So, moles of chloride ions in NaCl = \frac{x}{58.5}moles

Moles of chloride ions in KCl = \frac{(0.8870-x)}{74.5}moles

The total moles of chloride ions = \frac{x}{58.5}moles+\frac{(0.8870-x)}{74.5}moles

Now we have to calculate the moles of AgCl.

As we know that, this amount of chloride ion is same as the amount chloride ion present in the AgCl precipitate. That means,

Moles of AgCl = Moles of chloride ion = \frac{x}{58.5}moles+\frac{(0.8870-x)}{74.5}moles

Now we have to calculate the moles of AgCl.

The molar mass of AgCl = 143.32 g/mole

\text{Moles of }AgCl=\frac{\text{Mass of }AgCl}{\text{Molar mass of }AgCl}=\frac{2.142g}{143.32g/mole}=0.0149moles

Now we have to determine the value of 'x'.

Moles of AgCl = \frac{x}{58.5}moles+\frac{(0.8870-x)}{74.5}moles

0.0149 mole = \frac{x}{58.5}moles+\frac{(0.8870-x)}{74.5}moles

By solving the term, we get the value of 'x'.

x=0.818g

The mass of NaCl = x = 0.818 g

The mass of KCl = (0.8870 - x) = 0.8870 - 0.818 = 0.069 g

Now we have to calculate the mass percent of NaCl and KCl.

\text{Mass percent of }NaCl=\frac{\text{Mass of }NaCl}{\text{Total mass of mixture}}\times 100=\frac{0.818g}{0.8870g}\times 100=92.22\%

\text{Mass percent of }KCl=\frac{\text{Mass of }KCl}{\text{Total mass of mixture}}\times 100=\frac{0.069g}{0.8870g}\times 100=7.78\%

Therefore, the percent by mass of NaCl and KCl are, 92.22 % and 7.78 % respectively.

3 0
3 years ago
Which term or terms can be used to describe the model shown: element, compound, or molecule?
Afina-wow [57]

Answer:

Ammonia can be described as a compound and a molecule.

Explanation:

A compound consists of two or more different types of atoms bonded together and a molecule consists of two or more atoms bonded together. They can be the same atoms or a combination of different atoms. The model shown fits both of these terms. It is not an element because an element consists of only one type of atom.

4 0
3 years ago
What drives a galvanic cell?
lutik1710 [3]

Answer:

A galvanic cell is driven by the spontaneity of the chemical reaction occurring between the two compartments of the cell: Anode and Cathode.

Explanation:

A galvanic cell is driven by the spontaneity of the chemical reaction occurring between the two compartments of the cell: Anode and Cathode.

Note that the spontaneity of a reaction is either determined by its positive standard cell potential ( ξ ∘ ) or its negative free energy ( Δ G ∘ ).

6 0
2 years ago
A man drops a baseball off of the top of the Empire State Building. If the action force is the Earth pulling on the ball, then w
taurus [48]
I really think it is D! I hope this is correct for you!
5 0
2 years ago
Which compounds are acting like Brønsted-Lowry acids in the following acid-base equilibrium? HCO3− + H2O  H2CO3 and OH−
SCORPION-xisa [38]

The compound that acts like Bronsted-Lowry acids in the following acid base equilibrium is the H2O and H2CO3. It is because H2CO3 is able to donate the proton in reverse where as the water is also able to donate a proton by following the forward reaction.

7 0
3 years ago
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