From the sample of 50.0g of bone ,14g of calcium oxide were obtained what is the percentage by mass of calcium in the bone?
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if 56 gms of calcium oxide(CaO) contains 40 gms of calcium, then one gram of calcium oxide contains 40/56 gms of calcium .So 14 gms of calcium oxide contains 14×40/56=> 560/56 => 10 gms of calcium. hence %by mass of calcium in the bone = 10/50 ×100 =1000/50 =20% . Hope this helps you... Mark me as Brainliest if you think i am worthy of it.
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Cao Gran 56 nahi hai 46 hai
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