calculate the no of molecules present in 1 kg of oxygen
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Given mass of oxygen is 1Kg i.e 1000g
Molar mass of oxygen 16g
No. of moles of oxygen =Given mass of oxygen/Molar mass of oxygen
=1000/16 moles
= 62.5 moles
Hence 1 kg of oxygen equals 62.5 moles
1 mole of oxygen has 6.022×10^23 molecules
so,62.5 moles of oxygen have (6.022×10^23×62.5) molecules.
Hence 1 kg of oxygen has (376.38×10^23) molecules.
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Molar mass of oxygen 16g
No. of moles of oxygen =Given mass of oxygen/Molar mass of oxygen
=1000/16 moles
= 62.5 moles
Hence 1 kg of oxygen equals 62.5 moles
1 mole of oxygen has 6.022×10^23 molecules
so,62.5 moles of oxygen have (6.022×10^23×62.5) molecules.
Hence 1 kg of oxygen has (376.38×10^23) molecules.
----------------------------------------------------------
I HOPE THAT IT WILL HELP YOU.
PLEASE MARK THIS ANSWER BRAINLIEST.
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A ball of mass M is thrown vertically upwards. Another ball of mass 2M is thrown at an angle θ with the vertical. Both of them stay in air for the same period of time. The heights attained by the two are in the ratio.A ball of mass M is thrown vertically upwards. Another ball of mass 2M is thrown at an angle θ with the vertical. Both of them stay in air for the same period of time. The heights attained by the two are in the ratio.
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