Welcome to the article Solubility of potassium nitrate at 313 K is 62 g What mass of potassium nitrate would be required to produce a saturated solution of potassium. On this page, you will learn the essential and logical steps to better understand the topic being discussed. We hope the information provided helps you gain valuable insights and is easy to follow. Let’s begin the discussion!
Answer :
Final answer:
To create a saturated solution of potassium nitrate in 25 g of water at 313 K, 15.5 g of potassium nitrate is required, which corresponds to option (a).
Explanation:
The student is asking how much potassium nitrate (KNO3) is required to produce a saturated solution in 25 g of water at 313 K. The solubility of potassium nitrate at 313 K is 62 g. To create a saturated solution, you would add an amount of potassium nitrate to 25 g of water that would result in the maximum amount the water can hold at that temperature, without any solid remaining.
As the solubility is given as the amount that can dissolve in 100 g of water, you need to find out how much will dissolve in 25 g of water, which is a quarter of 100 g. Therefore, you would divide the solubility by 4 to find that 15.5 g of potassium nitrate is required for 25 g of water at 313 K to create a saturated solution. So, the correct answer is option (a) 15.5 g.
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Rewritten by : Brahmana