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aniked [119]
3 years ago
6

A gas has a volume of 7.0 L and a mass of 8.50 X 109 grams. What is its density in g/ml?

Chemistry
1 answer:
natka813 [3]3 years ago
8 0

Answer:

The answer is

<h2>1, 214, 285.71 g/mL</h2>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume}  \\

From the question

mass of gas = 8.5 × 10^9 g

But 1 L = 1000 mL

So 7 L = 7000 mL

volume = 7000 mL

So the density of the gas is

density =  \frac{8.5 \times  {10}^{9} }{7000}  \\  = 1214285.714285...

We have the final answer as

1, 214, 285.71 g/mL

Hope this helps you

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Answer: 3\times 10^{35}

Explanation:

The balanced chemical equation will be:

2Ag(s)+Ni^{2+}(aq)\rightarrow 2Ag^{+}(aq)+Ni(s)

Here Ag undergoes oxidation by loss of electrons, thus act as anode. Nickel undergoes reduction by gain of electrons and thus act as cathode.

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The standard emf of a cell is related to Gibbs free energy by following relation:

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\Delta G = gibbs free energy  

n= no of electrons gained or lost  =?

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K = equilibrium constant

\Delta G=-2.303RTlog K

+202650=-2.303\times 8.314\times 298\times logK

K=3\times 10^{35}

Thus the value of the equilibrium constant at 25^0C is 3\times 10^{35}

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