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Mnenie [13.5K]
3 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]3 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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7 0
2 years ago
What is the mole ratio needed to determine the mass of phosphorus trifluoride produced from the reaction of 120 g of phosphorus
Vitek1552 [10]

Answer:

\frac{4molPF_3}{1molP_4}

Explanation:

Hello

In this case, given the reaction:

P_4(s)+6F_2(g)\rightarrow 4PF_3(g)

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8 0
2 years ago
A sample of a vapor occupies a volume of 500 mL at 65°C. If pressure remains constant, what is the volume of the gas at standard
DedPeter [7]

Answer:

403 mL

Explanation:

First, I will assume that the mole is 1, because you are not specifing this.

Now, with the innitial data, we need to get the pressure:

T = 65+273 = 338 K

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Now if:

PV = nRT

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Let's calculate the P:

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3 years ago
Explain how molar mass relates the mass of an atom to mass and moles of the atom
satela [25.4K]
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2 years ago
. A room temperature white solid is mixed with a room temperature clear liquid resulting in a clear, colorless liquid that is ho
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Learn more about chemical reaction here: brainly.com/question/11231920

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