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2 years ago

At stp what is the volume of 5.35 moles of methane ch4

Chemistry

1 answer:

Nookie1986 [14]2 years ago

8 0

Answer:

22.4 L

Explanation:

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Copper is a solid phase of copper still unknown to science. The only difference between it and ordinary copper is that Copper fo

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Complete Question

The complete question is shown on the first uploaded image

Answer:

The density is $\rho = 8.21479 g/cm^3$

Explanation:

From the question we are told that

the lattice constant is $a = 0.295 nm = 0.295*10^{-9} = 0.295*10^{-7} cm$

The density of Copper ( $\beta$ ) is mathematically represented as

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Substituting values

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8 0

2 years ago

If He gas has an average kinetic energy of 4310 J/mol under certain conditions, what is the root mean square speed of O2 gas mol

Free_Kalibri [48]

Answer:

The root mean square speed of O2 gas molecules is

519.01 m/s

Explanation:

The root mean square velocity :

$v_{rms}=\sqrt{\frac{3RT}{M}}$

$K.E_{avg}=\frac{3}{2}RT$

$K.E =\frac{1}{2}mv_{rms}^{2}$

Molar mass , M

For He = 4 g/mol

For O2 = 2 x 16 = 32 g/mol

O2 = 32/1000 = 0.032 Kg/mol

First calculate the temperature at which the K.E of He is 4310J/mol

K.E of He =

$K.E_{avg}=\frac{3}{2}RT$

$T=\frac{2(K.E)}{3(R)}$

K.E of He = 4310 J/mol

$T=\frac{2(4310J/mol)}{3(8.314J/Kmol)}$

$T=345.60K$

Now , Use Vrms to calculate the velocity of O2

$v_{rms}=\sqrt{\frac{3(8.314J/Kmol)(345.60K)}{0.032Kg/mol}}$

$v_{rms}=\sqrt{\frac{8619.9552}{0.032}}$

$v_{rms}=\sqrt{26935.001}$

$v_{rms}=519.01m/s$

6 0

2 years ago

At stp what is the volume of 5.35 moles of methane ch4​

At stp what is the volume of 5.35 moles of methane ch4