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How many grams is 5.4x10 to the 23 molecules of al2o3?
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How many grams is 5.4x10 to the 23 molecules of al2o3?

User Samda
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1 Answer

9 votes

Answer:

91.49 grams

Step-by-step explanation:

No of molecules = no of moles × Avogadro's number

No of moles = No of molecules / Avogadro's number

Number of moles = 5.4×10^23/6.02×10^23

Number of moles = 0.897 moles of Al2O3

Number of moles = mass in gram / molar mass

Mass in gram = number of moles× molar mass

Mass in gram = 0.897× 102

91.49 grams

User Onelaview
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