Answer:
40 mmHg
Explanation:
Dalton's Law of Partial Pressures, states that the total pressure exerted by a mixture of gases is equal to the sum of the partial pressures of the individual gases in the mixture. Hence if I have gases A,B and C and I choose to designate the pressure of gas A as PA, the pressure of gas B as PB , the pressure of gas C as PC and the total pressure of all the gases together as PT. Then from Dalton's law; PT= PA + PB + PC
From the question; we designate the pressure of hydrogen as PA, pressure of nitrogen as PB and pressure of oxygen as PC.
PA= 70 mmHg
PB= the unknown
PC= 650 mmHg
If the total pressure of the gas mixture (PT) = 760 mmHg
Then;
760= 70 + PB + 650
PB= 760- (70+650)
PB= 760 - 720
PB= 40 mmHg
Therefore, the partial pressure of nitrogen is 40 mmHg
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<span>Distillation, filtration, evaporation are some of the techniques by which mixtures can be resolved into their components.Distillation is the process of separating the component or substances from a liquid mixture by selective evaporation and condensation.Filtration is any of various mechanical, physical or biological operations that separate solids from fluids (liquids or gases) by adding a medium through which only the fluid can pass.Evaporation is a type of vaporization of a liquid that occurs from the surface of a liquid into a gaseous phase that is not saturated with the evaporating substance.</span>
Answer:
As electro-negativity decreases from Florine to downwards in the group and only Florine is above Chlorine, so Florine should react with sodium chloride solution to produce chlorine.
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