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yuradex [85]
3 years ago
13

What is the oxidation number of chlorine

Chemistry
1 answer:
sergiy2304 [10]3 years ago
3 0
The oxidation number of chlorine in the Cl-<span> ion is -1.</span>
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What substance is composed of one type of atom
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A solution of methanol and water has a mole fraction of water of 0.312 and a total vapor pressure of 211 torr at 39.9∘C. The vap
DaniilM [7]

Answer : This is not an ideal mixture.

Explanation :

Using Raoult's law :

P_{Mixture}=p_{CH_3OH}+p_{H_2O}\\\\P_{Mixture}=x_{CH_3OH}\times p^o_{CH_3OH}+x_{H_2O}\times p^o_{H_2O}

where,

P_{Mixture} = total vapor pressure of mixture

p^o_{CH_3OH} = vapor pressure of pure methanol = 256 torr

p^o_{H_2O} = vapor pressure of pure water = 55.3 torr

x_{H_2O} = mole fraction of water = 0.312  

x_{CH_3OH} = mole fraction of methanol = 1 - 0.312 = 0.688

Now put all the given values in the above formula, we get:

P_{Mixture}=x_{CH_3OH}\times p^o_{CH_3OH}+x_{H_2O}\times p^o_{H_2O}

P_{Mixture}=0.688\times 256torr+0.312\times 55.3torr

P_{Mixture}=193.4torr

From this we conclude that the total vapor pressure of mixture is less than the total given vapor pressure of 211 torr. That means, the interactions between the methanol and water would be weaker than those between the individual substances. So, this is not an ideal mixture.

Hence, this is not an ideal mixture.

3 0
3 years ago
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