00:01
So here we have been given pressure.
00:03
So the pressure p is 28 .36 millimeter hg.
00:25
So now we will first of all convert it into atmosphere.
00:30
So it will be 28 .36 multiplied by 1 divided by 760 millimeter hg.
00:40
G okay so this will be equal to 0 .0373158 atmosphere then we have been given here the temperature temperature is in degree celsius and that is equal to 28 degrees celsius so it will be converted into calvin so adding 273 to it it will be 273 .15 this is the exact value so it will be 301 .15 kelvin then we have been given here mass with the help of this we can calculate the number of moles so so, number of moles that is n is equal to, we all know, mass divided by molar mass.
02:20
Okay, so here we have been given 0 .50 gram of water.
02:25
So mass of water is given to us and this is 0 .50 gram.
02:30
Divided by molar mass of water is, we all know, 18 gram per mole.
02:34
So on solving, it will be 0 .0.
02:43
2777 something moles...