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Whitepunk [10]
3 years ago
15

All of the following are examples of suspensions except what?:

Chemistry
1 answer:
artcher [175]3 years ago
6 0
Dust particles in the air
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What is the concentration, in m/v percent, of a solution prepared from 50 g NaCl and 2.5 L of solution?
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When we convert the given mass in grams and volume in liters to m/v percent, we recall that m/v percent is expressed as grams/100 milliliters. In this case the expression becomes (50 grams/ 2500 L)*(0.1L/100ml), that is equal to 0.002 grams/ 100 mL. Hence the the concentration is equal to 0.2 m/v percent.
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Matter can be measured in many ways for specific purposes which measurement depends on the force of gravity and is not a reliabl
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3 years ago
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A 50.5 L flask contains 3.25 mol of an unknown gas at 288.6 K, what is the pressure of<br> this gas?
Ivahew [28]

Answer:

1.52atm is the pressure of the gas

Explanation:

To solve this question we must use the general gas law:

PV = nRT

<em>Where P is pressure in atm = Our incognite</em>

<em>V is volume = 50.5L</em>

<em>n are moles of gas = 3.25moles</em>

<em>R is gas constat = 0.082atmL/molK</em>

<em>And T is absolute temperature = 288.6K</em>

To solve pressure:

P = nRT / V

P = 3.25mol*0.082atmL/molK*288.6K / 50.5L

P = 1.52atm is the pressure of the gas

3 0
3 years ago
Identify the property of the matter described below.
ZanzabumX [31]

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What is the frequency of light that has an energy of 3.98 x 10-18 J
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This is what i have found i hope this helps

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