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2 years ago

Write the chemical formula for the ionic compound formed by lithium and fluorine.

Chemistry

1 answer:

aev [14]2 years ago

3 0

Answer:

→ LiF

Explanation:

${ \rm{2Li _{(s)} + F _{2(g)} \dashrightarrow \: 2LiF _{(s)} }}$

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Two moles of an ideal gas are placed in a container whose volume is 2.3 x 10^-3 m3. The absolute pressure of the gas is 6.9 x 10

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Answer:

$K.E.=1.97\times 10^{-21}\ J$

Explanation:

Given that:-

Pressure = $6.9\times 10^5\ Pa$

The expression for the conversion of pressure in Pascal to pressure in atm is shown below:

P (Pa) = $\frac {1}{101325}$ P (atm)

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So,

$6.9\times 10^5\ Pa$ = $\frac{6.9\times 10^5}{101325}$ atm

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Using ideal gas equation as:

PV=nRT

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P is the pressure

V is the volume

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T is the temperature

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6.80977 atm × 2.3 L = 2 mol × 0.0821 L.atm/K.mol × T

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$K.E.=\frac{3}{2}\times K\times T$

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