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sergey [27]
4 years ago
15

A 4.0 L container stores 4.0 grams of an unknown gas at 2.3 atm of pressure and 30.0 degrees Celsius. What is the molar mass of

the unknown gas?
0.37 g/mol
0.093 g/mol
11 g/mol
3.7 g/mol
Chemistry
2 answers:
dusya [7]4 years ago
6 0
11g/mol


hope this helps
Masja [62]4 years ago
3 0
Correct answer is 11 g/ mol
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Consider the following reaction at constant pressure. Use the information provided below to determine the value of ΔS at 473 K.
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Answer:

The reaction will be spontaneous

Explanation:

To determine if the reaction will be spontaneous or not at this temperature, we need to calculate the Gibbs's energy using the following formula:

\Delta G= \Delta H - T * \Delta S

<u>If the Gibbs's energy is negative, the reaction will be spontaneous, but if it's positive it will not.</u>

Calculating the \Delta G= -1267 - 473 K* \Delta S :

\Delta G= -1267 - 473 K* \Delta S

Now, other factor we need to determine is the sign of the S variation. When talking about gases, the more moles you have in your system the more enthropic it is.

In this reaction you go from 7 moles to 8 moles of gas, so you can say that you are going from one enthropy to another higher than the first one. This results in: \Delta S>0[/tex}Back to this expression: [tex]\Delta G= -1267 - 473 K* \Delta S

If the variation of S is positive, the Gibbs's energy will be negative always and the reaction will be spontaneous.

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PolarNik [594]
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Which example is the site of reduction when the dry cell is operating
Simora [160]

Answer:

A battery contains electrochemical cells that can store chemical energy to be converted to electrical energy. A dry-cell battery stores energy in an immobilized electrolyte paste, which minimizes the need for water. Common examples of dry-cell batteries include zinc-carbon batteries and alkaline batteries.

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mrs_skeptik [129]

Answer:

2 - Butyne

Explanation:

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2- Butyne is an alkyne with structural formula given below. Some of the properties of Butyne include it is a produced artificially, it is volatile and colorless in nature.

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Explanation:

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