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Find the solubility of KNO3 at 20 degress C when the mass of the empty dish is 50 g ,the mass of the dish and solution is 65 g,while the mass of dish and residue is 54.3 g ..............
show it plzz how it came.............................................ANS=40.18 g
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tq!
Answers
Answered by
2
mass of solution=65-50=15g
mass of residue=54.3-50=4.3g
solublity=(mass of residue/mass of solution-mass of residue)×100g=4.3×100/(15-4.3)=430/11.7=4300/117=36.7g
It is not 40.18g
mass of residue=54.3-50=4.3g
solublity=(mass of residue/mass of solution-mass of residue)×100g=4.3×100/(15-4.3)=430/11.7=4300/117=36.7g
It is not 40.18g
futureflame43:
sorry
solublity=4.3×100/10.7=40.18
my mistake
pls saloni mark my answer as brainliest
Answered by
5
Mass if empty dish =50g
Mass of dish and solution =65g
Mass of dish and residue =54.3g
Mass of dish and solution - Mass of empty dish =Mass of solution.
=65-50=15
Solution =15g
Mass of dish and residue - Mass of dish = Mass of solute.
=54.3 - 50 = 4.3(solute)
Solution - Solute =Solvent
=15 - 4.3 = 10.7(solvent)
Solubility = mass of solute /mass of solvent *100
=40.18...answer.
Pls mark my answer as brainliest.
Mass of dish and solution =65g
Mass of dish and residue =54.3g
Mass of dish and solution - Mass of empty dish =Mass of solution.
=65-50=15
Solution =15g
Mass of dish and residue - Mass of dish = Mass of solute.
=54.3 - 50 = 4.3(solute)
Solution - Solute =Solvent
=15 - 4.3 = 10.7(solvent)
Solubility = mass of solute /mass of solvent *100
=40.18...answer.
Pls mark my answer as brainliest.
plzzzzzz
what r u not able to understand
yes i have solved
in your book only 2digits r given after decimal because only 2digits r often written not more than 2
do u got my point
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