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nydimaria [60]
3 years ago
9

Method that used to separate kerosine and water?

Chemistry
2 answers:
nata0808 [166]3 years ago
7 0
You can use a separating funnel. The person will go the top and the water to the bottom.
earnstyle [38]3 years ago
6 0
Basically you could just use a separating funnel
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Calculate the molarity of a solution that contains 2.25 mol of NaNO^3 dissolved in 3.00 L.
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Number of moles = 2.25 mols

volume <span>of the solution = 3.00 L
</span>
Therefore :

 molarity = moles / volume

m = 2.25 / 3.00

=> 0.75 M
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3 years ago
During osmosis, water moves from a region of _____ to a region of _____.both "high solvent concentration; low solvent concentrat
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Answer: -

Osmosis is the process by which water molecules move from a region of high solvent concentration to low solvent concentration.

Now in any solution there are just solute and solvent.

If the amount of solvent is more in a solution then the amount of solute would be less.

Again if the amount of solvent is less in a solution then amount of solute is more.

Thus we can write that :- osmosis is the movement of water molecules from a region of low solute concentration to high solute concentration.

5 0
3 years ago
Read 2 more answers
Hydrogen peroxide is oxidized with permanganate solution to produce oxygen gas by the following reaction:
monitta

The percentage yield of the oxygen gas is 60%.

<h3>What is the limiting reactant?</h3>

The reaction equation is;

2H^+ + H2O2 + 2MnO4 -> 2MnO2 + 4H2O + 3O2

Number of moles of hydrogen peroxide = 30/1000 * 0.30 M = 9 * 10^-3 moles

Number of moles of  potassium permanganate = 30/1000 * 0.30 M = 9 * 10^-3 moles

Now;

1 mole of H2O2 reacts with 2 moles of permanganate

 9 * 10^-3 moles of H2O2 reacts with  9 * 10^-3 moles * 2 moles/1 mole  

= 1.8 * 10^-2 moles

Hence, permanganate is the limiting reactant

b) The theoretical yield of oxygen is;

2 moles of oxygen produced 3 moles of O2

9 * 10^-3 moles oxygen  produced 9 * 10^-3 moles *  3 moles/2 moles

= 0.0135 moles

If 1 mole of O2 occupies 22.4 L

0.0135 moles of O2 occupies 0.0135 moles * 22.4 L/ 1 mole

= 0.302 L or 302 mL

c) Percentage yield of oxygen = 178 mL/ 302 mL * 100/1

= 60%

Learn more about percentage yield:brainly.com/question/27492865

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5 0
1 year ago
ASAP<br>what is an electron cloud ​
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Explanation:

An electron cloud is the region of space that surrounds the nucleus of an atom under the nucleus of the negatively charged sub-atomic particles.

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  • The neutrons do not carry any charges and occupies the nucleus with protons.
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Learn more:

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3 years ago
As current flows through a system, what happens to the voltage available at each load?
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