how many molecules are present in 9g of water(atomic mass of H=1u,O=16u)
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3.0111×10-22 will be the answer
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Mass of H= 1u
Mass of O=16u
Mast of H2O(Water)=2(1)+1(16)
=2+16
=18u
Molecules in 18g of water=6.022×10^23
molecules in 9g of water= (6.022×10^23)/2
=3.011×10^23 molecules
*If still any query please message*
Mass of O=16u
Mast of H2O(Water)=2(1)+1(16)
=2+16
=18u
Molecules in 18g of water=6.022×10^23
molecules in 9g of water= (6.022×10^23)/2
=3.011×10^23 molecules
*If still any query please message*
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