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2 years ago

7. Assume that you have collected 867 L of nitrogen gas at STP. What is the mass of the nitrogen gas?

Chemistry

1 answer:

jekas [21]2 years ago

6 0

Answer:

1083.6 g

Explanation:

At STP, 1 mol of any given mass will occupy 22.4 L.

With the information above in mind we can calculate how many moles of nitrogen gas (N₂) are there in 867 L:

867 L ÷ 22.4 L/mol = 38.7 mol

Finally we convert 38.7 moles of N₂ into grams, using its molar mass:

38.7 mol * 28 g/mol = 1083.6 g

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Answer:

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The standard cell potential Ec for the reduction of silver ions with elemental copper is 0.46V at 25 degrees celsius. calculate

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Answer : The $\Delta G$ for this reaction is, -88780 J/mole.

Solution :

The balanced cell reaction will be,

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Now we have to calculate the Gibbs free energy.

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where,

$\Delta G^o$ = Gibbs free energy = ?

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2 years ago

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2 years ago

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dexar [7]

Given :

The distance between a point charge and a neutral atom and is multiplied by a factor of 5.

To Find :

By what factor does the force on the neutral atom by the point charge change.

Solution :

We know, electrostatic force between two object is directly proportional to product of charge and inversely proportional to distance between them.

Now, charge in neutral atom is 0 C.

So, the electrostatic force between two of them is also 0 N.

Therefore, by changing distance between the charge the forces did no change ( it remains zero).

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2 years ago