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How to make 1N and 1M H2SO4 ?

Now let's see how to make 1 N and 1M  H2SO4 from 98% concentrated H2SO4 . This calculation varies with concentration of H2SO4. Because density varies with concentration of H2SO4 . Now we are having density 1.84 for 98% concentrated H2SO4.  If you are going to use less concentrated H2SO4 then first find out density of it then put that value in below formula instead of 1.84 H2SO4 is liquid, so at first we need to convert H2SO4 molecular weight (gm) into volume (ml) let's use formula density = mass / volume volume = mass of HCl  / density                             98.08 / 1.84 V = 53.30 ml Here we are making 1M and 1N  H2SO4 from 98% concentrated H2SO4. If you are going to use less concentrated H2SO4 then use that percentage value in below formula rather than 98%. Let's use formula  1M H2SO4 (98%) =  53.30 ml [ V ]                100%    ...
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HOW FISHES STAY ALIVE IN WATER?

           fishes stay alive in water as we human can stay alive on earth surface.we humans are alive because we breath oxygen. Without oxygen we can't stay alive on earth surface. Water living organisms like fishes also breath oxygen  in water. respiratory organs of humans and fishes are totally different. Because we live on the earth and they in water.

 Human Respiration. 





 

 Humans perform respiration through their lungs. Humans takes oxygen insides of their body and release carbon dioxide. In humans body,  inhaling of oxygen and exhaling of  carbon dioxide that both process carry out by  same organs. But in case of fishes it's totally different.

Fishes respiration. 





    


  fishes perform respiration through their gills. You can see in first image, fishes takes oxygen reach water inside of their body and absorbe all oxygen which present in the water.during that process they close their gills . 
  In second image you can see ,they close their mouth and open gills to release oxygen used water. That both respiration and exhaling process carry out by two different organs. 

  I would like to tell you level of oxygen in air is exactly equal to the level of oxygen in water. 

For ex. There is glass which contain X amount of water and Y amount of oxygen. That X amount of water has some volume =V1






And there is another glass which contain nothing it's empty. Means there is air inside of that glass .
That air has some volume =V2 

 We can prove practically V1 and V2  both contain same amount of oxygen .

Eventhough we can't live in water without swimming costumes.




 

and fishes can't live on earth surface .it's because of different body structure. 













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