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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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WHY DOES COLOUR OF SUN CHANGE ?

  When we see the sun in midday it looks yellow but at the sunset it looks red. do you know why.                  If you wants know that, you must know range of visible region .            Why sun looks yellow in midday ? Sun looks yellow in midday because, blue, violet colours have low wavelength but high frequencies , because of that, they scatter in all direction and sky looks blue . That means we just have to consider remained yellow, orange and red colours . This three colours  have low frequencies but high wavelengths, as compare to blue and violet colour . that is why they easily reach to earth surface.                           There are three colours eventhough sun looks yellow because if we compare just these three colours, then we can understand orange and red colours have high wavelengths and low frequencies. But yello...
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HOW DOES LIGHT CROSS DISTANCE?

  Light travell distance because our surroundings  weather  is the composition of atoms .that atoms are responsible  for travelling  of light.  The distance traveled by light is directly proportional to intensity of light .                          When you turn on the torch in your room ,it would be sufficient .because  your room has limited area. but when you turn on torch in open    Area ,you can see just limited area .you can't  cover larger area with torch, because it has limited energy.      LET'S SEE HOW ATOMS ARE RESPONSIBLE FOR THAT                When you turn on torch ,it emits  some radiation called  photons . Atoms absorb  that radiations and get excited. Means electrons which they contain,  goes low energy  level to high energy  level. This happens with lot of at...
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WHY DO THING'S HAVE SHADOWS ?

       All humans , animals , birds , trees , and  other living organisms have shadow's. Even  non living Things have shadows.                       A lot of people's dont know about that.  But we must know that, because everyday we see our shadow's, other people's  shadow's, sometime  we play with shadows,   by making birds, animals shadows by using  our     hands. sometimes we create scary   shadows .                                                                 DO YOU KNOW HOW WE CAN DO THAT ? We can do that because, our body is massive  and solid  but not transparent. Transparent things have no shadows. Things have            ...
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HOW CAN WE SEE THROUGH OUR EYES ?

         we can see the different  things like tree and surrounding objects etc. Through  our eyes, because  structure  of human eye make us able to see the things.          Let' see the structure  of human eyes.     This is  the structure  of our eye. Cornea is the transparent part of our eyes. When light radiation incident on the cornea,  then they pass through  the cornea and incident on lens. This lens  are called  convex  lens. This  lens concentrate  all light which passed  through the cornea. Then concentrated  light incident  on main part of our eye called retina   and produce colourfull  image. NOW  YOU  WILL  ASK  ME , HOW CAN  WE  SEE  THE COLOURS ? This is very interesting  point. It's  all depends  on the radiation which is reflected  from objects. you must ...
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