Which of the following is soluble in water potassium nitrate

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Hint: Potassium nitrate also known as saltpetre has a chemical formula $KN{O_3}$. It is a white solid that is soluble in water and is formed when sodium nitrate and potassium chloride solution undergo fractional distillation. It is widely used in gunpowder and in chemistry labs for preparation of nitric acid.

Complete answer: At room temperature, the structure of potassium nitrate is an orthorhombic crystal which converts to a trigonal system when the temperature rises to ${129^ \circ }C$.
Ionic compounds are more soluble in water as compared to covalent compounds and potassium nitrate i.e., $KN{O_3}$ is an ionic salt of potassium ion \[({K^ + })\] and nitrate ions \[(N{O_3}^ - )\] and when dissolved in water, the positive side of the water dipole is attracted by \[N{O_3}^ - \] ions whereas the negative side of the dipole of water is attracted by \[{K^ + }\] ions. Hence it is soluble in water.
Potassium nitrate is not highly soluble in water but as the temperature increases, its solubility in water also increases. It has a tendency to absorb $0.03\% $ of water in $80\% $ relative humidity over $50$ days, hence it is not very hygroscopic i.e., it has a very less tendency to hold water molecules in its surroundings. The variation of solubility of potassium nitrate with temperature is shown as per following graph:

Which of the following is soluble in water potassium nitrate

Note:
Potassium nitrate has many uses like it is widely used as gunpowder in the explosives like grenades, bombs, etc. It is also used in the production and manufacturing of cigarettes. It is also used in the food industry as a preservative for meat and other food products.

Potassium nitrate is extremely soluble in water.  The solubility of potassium nitrate is 60 g KNO3 per 100 g of water at 42oC. 

1.  If 35 g of KNO3 is dissolved in 100 g of water at the same temperature, would the solution be saturated or unsaturated?  Explain your answer.

2.  If 15 g of KNO3 is dissolved in 50 g of water at the same temperature, would the solution be saturated or unsaturated?  Explain your answer.  Can any additional KNO3 be dissolved in the given amount of water assuming the temperature does not change?  If so, calculate the amount of additional potassium nitrate that can be dissolved.

Which of the following is soluble in water potassium nitrate

Which of the following is soluble in water potassium nitrate

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    Is potassium nitrite water soluble?

    Hint: Potassium nitrate also known as saltpetre has a chemical formula KNO3. It is a white solid that is soluble in water and is formed when sodium nitrate and potassium chloride solution undergo fractional distillation.

    Is potassium soluble or insoluble in water?

    Potassium is non-water soluble, but it does react with water as was explained earlier. Potassium compounds may be water soluble.

    Which is more soluble in water sodium nitrate or potassium nitrate?

    sodium chloride and lead(II) nitrate are more soluble than potassium nitrate at low temperatures. the solubility of lead(II) nitrate and potassium nitrate is the same at about 50°C (approximately 80 g per 100 g water, where the solubility curves of these substances cross)

    Is AgNO3 and KNO3 soluble in water?

    Answer and Explanation: AgNO3 is very soluble in water. This means water molecules, because of their polar nature, can separate the silver ions from the nitrate ions.