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yKpoI14uk [10]
3 years ago
15

What is the length of a football field in (cm)

Chemistry
1 answer:
mina [271]3 years ago
4 0
9144 cm convert yards to meter and then multiply by 100
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If I have an unknown quantity of gas at a pressure of 380 mmHg, a volume of 25 L, and a temperature of
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Answer:

                     0.5077 moles

Explanation:

Data Given:

                Moles  =  n  =  <u>???</u>

                Temperature  =  T  =  300 K

                 Pressure  =  P  =  380 mmHg = 0.50 atm

                 Volume  =  V  =  25 L

Formula Used:

Let's assume that the hydrogen gas in balloon is acting as an Ideal gas, the according to Ideal Gas Equation,

                 P V  =  n R T

where;  R  =  Universal Gas Constant  =  0.082057 atm.L.mol⁻¹.K⁻¹

Solving Equation for n,

                 n  =  P V / RT

Putting Values,

                 n  =  (0.50 atm × 25 L) / (0.082057 atm.L.mol⁻¹.K⁻¹ × 300 K)

                 n  = 0.5077 moles

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Decribe an example of how external temperature may affect human body functions
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