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Mnenie [13.5K]
4 years ago
6

A sample of potassium nitrate (49.0 g) is dissolved in 101 g of water at 100 °C, with precautions taken to avoid evaporation of

any water. The solution is cooled to 30.0 °C and a small amount of precipitate is observed. This solution is __________.
Chemistry
1 answer:
kvasek [131]4 years ago
8 0

Answer:

Saturated solution

Explanation:

Saturated solution is the solution in which no more solute can be dissolved at a particular temperature.

A amount of the solute, potassium nitrate is dissolved at elevated temperature and on cooling, it precipitates. It means that the solution is saturated at that temperature. <u>Precipitation of the solute at lower temperature indicates that the solution is saturated solution.</u>

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The theoretical proportion is given by the balanced chemical equation:

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Solve for x, x = 40 * 3/2 = 60 mol NaOH.

Given that there are 48 mol NaOH (less than 60) this is the limitant reactant and the other is the excess reactant.

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Answer:

v = 534.5mL

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0.9167 =m/651.41

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For the third question

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<h3>Salt and it's examples.</h3>

Salt is defined as the chemical compound that contains both a positively charged cation.and negatively charged anion.

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Examples of salt include:

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brainly.com/question/13655717

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