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Dmitry_Shevchenko [17]
3 years ago
12

In a classroom, which comparison would a teacher most likely use for describing a mole?

Chemistry
2 answers:
RUDIKE [14]3 years ago
6 0

Answer:

B

Explanation:

a mole is "a chemist's dozen" lol

aksik [14]3 years ago
4 0
B That the answer (hope this helps)
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A sample of nitrogen gas collected at a pressure of 1.03 atm and a temperature of 279 K is found to occupy a volume of 568 milli
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Answer: 0.025 moles of nitrogen gas are there in the sample.

Explanation:

According to ideal gas equation:

PV=nRT

P = pressure of gas = 1.03 atm

V = Volume of gas = 568 ml = 0.568 L   (1L=1000ml)

n = number of moles  = ?

R = gas constant =0.0821Latm/Kmol

T =temperature =279K

n=\frac{PV}{RT}

n=\frac{1.03atm\times 0.568L}{0.0821L atm/K mol\times 279K}=0.025moles

0.025 moles of nitrogen gas are there in the sample.

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3 years ago
What causes pressure inside a helium balloon?
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Which instrument is directly used to determine the relative masses of atoms?
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