Number of molecules present in 1 kg of oxygen
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mass of oxygen=1 kg= 1000 g
molar mass of oxygen=16 g
no. of moles= given mass / molar mass
= 1000/16= 62.5 moles
there are 62.5 moles in 1 kg of oxygen.
no. of molecules = no. of moles x Avogadro number
= 62.5 × 6.022 × 10²³
= 376.375 × 10²³ molecules...
hope it helps
molar mass of oxygen=16 g
no. of moles= given mass / molar mass
= 1000/16= 62.5 moles
there are 62.5 moles in 1 kg of oxygen.
no. of molecules = no. of moles x Avogadro number
= 62.5 × 6.022 × 10²³
= 376.375 × 10²³ molecules...
hope it helps
Answered by
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HI there !!
Given mass of oxygen = 1 kg = 1000 g
Molar mass of oxygen = 16 u
No: of moles = Given mass / Molar mass
= 1000 / 16
= 62.5 moles
No: of molecules = No: of moles x Avogadro number
= 62.5 × 6.022 × 10²³
= 376.375 × 10²³ molecules
Given mass of oxygen = 1 kg = 1000 g
Molar mass of oxygen = 16 u
No: of moles = Given mass / Molar mass
= 1000 / 16
= 62.5 moles
No: of molecules = No: of moles x Avogadro number
= 62.5 × 6.022 × 10²³
= 376.375 × 10²³ molecules
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