Join the growing community of curious minds on IDNLearn.com. Our experts provide accurate and detailed responses to help you navigate any topic or issue with confidence.

What mass of the compound CrO3 (M=100.0) contains 4.5x10^23 Oxygen atoms?
Please show your steps.


Sagot :

CrO₃ << we've a 3 oxygen atoms

1 mole of CrO₃ = 100g
in 1 oxygen atoms we've a 6,022*10²³ atoms (Avogadro constant)

in 100g of CrO₃-----------------3*6,022*10²³ oxygen atoms
in x g of CrO₃ ------------------ 4,5*10²³ oxygen atoms
x = 24,91g of CrO₃