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11 months ago

a 433 l tank holds helium gas at -48 °c with a pressure of 1.24 atm. how many moles of gas are in the tank?

Chemistry

1 answer:

Novay_Z [31]11 months ago

4 0

Number of moles of gas are in the tank is <u>0.287 mole.</u>

Pressure is the force implemented perpendicular to the floor of an object in step with unit location over which that force is shipped. Gauge strain is the strain relative to the ambient strain. diverse units are used to specific strain.

Strain is described as force implemented consistent with unit area. Mathematically it's far given by, P=FA. wherein F is the force acting perpendicular to the floor vicinity A. the usual unit of strain is the pascal (Pa), equal to at least one newton in keeping with meter squared (N/m 2 ).

Calculation:-

volume = 433 L

Pressure = 1.24 atm

T = -48 °c

= 273 - 48 K

= 225 K

PV = nRT

n = PV/RT

= 1.24 × 433 / 8.314 × 225 K

= 0.287 mole

Learn more about Pressure here:-brainly.com/question/28012687

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Which equation correctly represents the first electron affinity (ea1) of calcium?

AleksandrR [38]

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The correct answer is : $Ca (g) + e^- \rightarrow Ca^- (g)$

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It is defined as energy released or absorbed when an electrons is added to neutral isolated atom in gaseous state .

The first electron affinity is the energy absorbed or released when one electron is to outermost shell of a neutral atom .

The first electron affinity is generally negative , when electron is added to non metals . While when electron is added to metals , the electron affinity is positive.

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First electron affinity for Calcium can be written as :

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Hence the equation goes as

$Ca (g) + e^-\rightarrow Ca^- (g)$

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