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mihalych1998 [28]
3 years ago
13

If you have a dozen pennies and a dozen quarters, how many coins do you have?

Chemistry
1 answer:
Charra [1.4K]3 years ago
8 0

Answer:

24

Explanation:

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47.9 ml hrdrogen is collected at 26° Celsius and 718 torr. Find the volume occupied at STP
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Explanation:

Applying the general gas equation,

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Where P = Initial pressure of hydrogen, V = Initial volume of hydrogen, T= Initial Temperature of hydrogen, P' = Final pressure of hydrogen, V' = Final Volume of Hydrogen, T' = Final Temperature.

make V' the subject of the equation

V' = PVT'/TP'................ Equation 2

Given: P = 718 torr = (718×133.322) N/m² = 95725.196 N/m², V = 47.9 mL = 0.0479 dm³, T = 26 °C = (26+273) = 299 K, T' = 273 K, P' = 101000 N/m²

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V' = ( 95725.196×0.0479×273)/(299×101000)

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