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Ahat [919]
2 years ago
15

Why is potassium nitrate classified as aj electrolyte?

Chemistry
2 answers:
baherus [9]2 years ago
6 0
<span>KNO3 is a strong electrolyte because it completely dissociates into ions in water. Dissociates means it immediately breaks into ions of K+ (potassium cation) and NO3- (nitrate anion). Thus it also conducts electricity very well compared to a weak electrolyte.</span>
oee [108]2 years ago
4 0

Potassium Nitrate is classified as an electrolyte because of its highly conductive nature when dissolved in water.

Explanation

Potassium nitrate represented as KNO3 are ionic bonded compounds.

They are polar substances as the electronegative difference between nitrate and potassium is very high, so they can easily break their bond and dissolve in water easily.

It has large range of applications. It is even used as gun powder, in firecrackers etc,.

As the KNO3 is easily soluble in water and they can form K+ and NO3- ions when dissolved in water.

These ions acts as conducting agents in the water solution so they act as electrolyte.

As electrolytes are the solutions which have the capacity to conduct electrical energy in the electrochemical reactions, the conductive nature of potassium nitrate dissolved in water makes them useful as an electrolyte in salt bridge experiment.

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How many particles are in a 151 g sample of Li2O?
neonofarm [45]

Answer:

3.052 × 10^24 particles

Explanation:

To get the number of particles (nA) in a substance, we multiply the number of moles of the substance by Avogadro's number (6.02 × 10^23)

The mass of Li2O given in this question is as follows: 151grams.

To convert this mass value to moles, we use;

moles = mass/molar mass

Molar mass of Li2O = 6.9(2) + 16

= 13.8 + 16

= 29.8g/mol

Mole = 151/29.8g

mole = 5.07moles

number of particles (nA) of Li2O = 5.07 × 6.02 × 10^23

= 30.52 × 10^23

= 3.052 × 10^24 particles.

4 0
2 years ago
Convert 675 nanograms to milligrams.
STALIN [3.7K]

675 nanograms is equivalent to 6.75 × 10-⁴ milligrams.

<h3>How to convert nanograms to milligrams?</h3>

Nanograms is a unit of mass equal to 0.000000001 grams and has a symbol of ng.

On the other hand, milligrams is another unit of mass equal to 0.001grams and has a symbol of mg.

Nanograms and milligrams are both units of mass and can be inter-convertible as follows:

1 nanogram = 1 × 10-⁶ milligram

According to this question, 675 nanograms is equivalent to 675 × 10-⁶ milligrams.

Therefore, 675 nanograms is equivalent to 6.75 × 10-⁴ milligrams.

Learn more about milligrams at: brainly.com/question/20320382

#SPJ1

7 0
1 year ago
Consider the reaction.
Stella [2.4K]

Answer:

when the rates of the forward and reverse reactions are equal

Explanation:

In a chemical system, the reaction reaches a dynamic equilibrium when the rate of formation of product equals the rate of formation of reactants. This implies that both the forward and revered(backwards) reaction are occurring at the same rate.

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