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aliya0001 [1]
3 years ago
13

PLEASE HELP FASTTT!!!!

Chemistry
1 answer:
Umnica [9.8K]3 years ago
4 0
I did this when I was younger
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Work out the volume of 0.1 moles of chlorine gas at room temperature and pressure.
Lilit [14]

Volume of gas at room temperature = number of moles x 24 dm^3

Volume = 0.1 moles x 24 dm^3

Volume = 2.4 dm^3  (or 2400 cm^3)

5 0
4 years ago
The standard cell potential Ec for the reduction of silver ions with elemental copper is 0.46V at 25 degrees celsius. calculate
Cloud [144]

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

Solution :

The balanced cell reaction will be,  

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

Here, magnesium (Cu) undergoes oxidation by loss of electrons, thus act as anode. silver (Ag) undergoes reduction by gain of electrons and thus act as cathode.

The half oxidation-reduction reaction will be :

Oxidation : Cu\rightarrow Cu^{2+}+2e^-

Reduction : 2Ag^++2e^-\rightarrow 2Ag

Now we have to calculate the Gibbs free energy.

Formula used :

\Delta G^o=-nFE^o

where,

\Delta G^o = Gibbs free energy = ?

n = number of electrons to balance the reaction = 2

F = Faraday constant = 96500 C/mole

E^o = standard e.m.f of cell = 0.46 V

Now put all the given values in this formula, we get the Gibbs free energy.

\Delta G^o=-(2\times 96500\times 0.46)=-88780J/mole

Therefore, the \Delta G for this reaction is, -88780 J/mole.

7 0
4 years ago
Henry mixed salt and water together in a cup until he observed a clear solution. He measured the mass of the solution. Then he p
Svet_ta [14]
Statement 2 is correct.
solids moving into solution is a physical change as the core structure of the molecules remain the same. evaporation of water and crystallization of salt are both physical changes as well.
The water does not change it's H2O chemical makeup because salt was dissolved into it.
5 0
4 years ago
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Is mountain lions a herbivore
egoroff_w [7]
Mountain lion have to hunt other animals up in the Mountains. Other animals are meat. Therefore mountain lions are carnivores, not herbivores. 

I hope this helped!
If it did I would like it if I got brainliest :)
7 0
3 years ago
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On a potential energy diagram, what is true about activation energy?
jonny [76]

Why hello there!

The correct answer to your question is C because exothermic energy is based of on using heat and heat acts like the activation !

If my answer helped please mark me as brainliest i really want to rank up thank you and have the best day ever!

7 0
3 years ago
Read 2 more answers
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