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Wewaii [24]
3 years ago
6

A 15.0 L tank of gas is contained at a high pressure of 8.20x10 4 torr. The tank is opened and the gas expands into an empty cha

mber with a volume of 6.00x10 4 L. Calculate the new pressure of the gas.
Chemistry
1 answer:
Alexxx [7]3 years ago
7 0

Answer:

P₂ = 20.5 torr

Explanation:

Given data:

Volume of tank = 15.0 L

Pressure of tank = 8.20×10⁴ torr

Final volume of tank = 6.00×10⁴ L

Final pressure = ?

Solution:

The given problem will be solved through the Boly's law,

"The volume of given amount of gas is inversely proportional to its pressure by keeping the temperature and number of moles constant"

Mathematical expression:

P₁V₁ = P₂V₂

P₁ = Initial pressure

V₁ = initial volume

P₂ = final pressure

V₂ = final volume  

Now we will put the values in formula,

P₁V₁ = P₂V₂

8.20×10⁴ torr  ×  15.0 L = P₂ × 6.00×10⁴ L

P₂ = 8.20×10⁴ torr  ×  15.0 L / 6.00×10⁴ L

P₂ = 123×10⁴ torr.L/ 6.00×10⁴ L

P₂ = 20.5 torr

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An analytical chemist has determined by measurements that there are 8.5 moles of magnesium in a sample of talc. How many moles o
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There are 5.66 moles of hydrogen in the sample of talc(hydrated magnesium silicate).

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moles of magnesium = 8.5 moles

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So 3 moles of magnesium is equivalent to 2 moles of hydrogen.

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45 Gg = [? ]x10!?g<br> ]<br> =<br> ]
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To convert from giga grams (Gg) to grams (g), the following coversion scale can be use:

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With the above convesion scale, we can convert 45 Gg to g as follow

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Therefore,

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Thus, 45 Gg is equivalent to 45×10⁹ g. Hence, we can conclude as follow:

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  • The exponent (yellow) is 9

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