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2 years ago

A container of gas has a volume of 140.0 cm3 at a temperature of 27.0°C. If the

Chemistry

1 answer:

Vitek1552 [10]2 years ago

8 0

Answer:

285.185 (.185 repeating) cm^3

Explanation:

To get the answer, you divide 140 by 27 to get 5.185 (.185 repeating). Then, you multiply 5.185 (.185 repeating) by 55 and get 285.185 (.185 repeating) cm^3. Please use ^ next time to indicate exponents.

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In methane combustion, the following reaction pair is important: At 1500 K, the equilibrium constant Kp has a value of 0.003691

andre [41]

Explanation:

Let us assume that the value of $K_{r}$ = $2.82 \times 10^{5} \times e^({\frac{-9835}{T}}) m^{6}/mol^{2}s$

Also at 1500 K, $K_{r}$ = $2.82 \times 10^{5} \times e^({\frac{-9835}{1500}}) m^{6}/mol^{2}s$

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Relation between $K_{p}$ and $K_{c}$ is as follows.

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Putting the given values into the above formula as follows.

$K_{p} = K_{c}RT$

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$K_{c} = 2.9 \times 10^{-7}$

Also, $K_{c} = \frac{K_{f}}{K_{r}}$

or, $K_{f} = K_{c} \times K_{r}$

= $2.9 \times 10^{-7} \times 400.613$

= $1.1617 \times 10^{-4} m^{6}/mol^{2}s$

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3 years ago

The __________________ of a solution tells how many moles of solute are present per liter.

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Answer:

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Molarity is a sort of concentration.

It is written as M (mol/L)

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