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iris [78.8K]
3 years ago
10

Can ya help me out real quick?

Chemistry
1 answer:
Taya2010 [7]3 years ago
8 0

Answer:

302 kj heat is released by lowering the temperature

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The final marks in a statistics course are normally distributed with a mean of 70 and a standard deviation of 10. The professor
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Use the ideal gas law to calculate the pressure in atmospheres of 0.21 mol of helium (He) at 16°C &amp; occupying 2.53 L. You mu
chubhunter [2.5K]

Answer:

The answer to your question is 2.32 atm

Explanation:

Data

P = ?

n = 0.214

V = 2.53 L

T = 61°C

R = 0.082 atm L/mol°K

Formula

PV = nTR

solve for P

P = nRT/V

Process

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°K = °C + 273

°K = 61 + 273

    = 334

2.- Substitution

P = (0.214 x 0.082 x 334) / 2.53

3.- Simplification

P = 5.86/2.53

4.- Result

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3 years ago
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C. Between 0 and 1 seconds

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