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Grade: 12th pass

                        

a metal oxide with formula M2O3 contains 30% oxygen by mass. then mass of metal oxide which contains 1.5 *10^24 atom is

2 years ago

Answers : (1)

Parth Sharma
24 Points
							For one mole of metal oxide,Mass of M203 = m0.3m = 3Om= 10Othus, m = 160g (for one mole)but,this mass is for 6.022 x 103 atomsi.e., for 2.5NA          (NA = Avogadro’s Number)therefore, actual mass of M203 is:=> (160g)2.5Mass of metal oxide = 400g
						
2 years ago
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