Welcome to Westonci.ca, where you can find answers to all your questions from a community of experienced professionals. Get quick and reliable solutions to your questions from a community of experienced professionals on our platform. Get quick and reliable solutions to your questions from a community of experienced experts on our platform.

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