Conversion from molar mass to mols

[Rectifier]

This is not a question from a book.

I know that Cobalt-60 has the atomic mass of 59.933817059u. How can I get the amount of moles in 1μ Cobalt-60?

I know that $n=\frac{m}{M}$ but I can't really ply it here it seems.
Can anyone help me please?

 

[insightful]

I know that n=mMn=\frac{m}{M} but I can't really ply it here it seems.

I don't see why it can't be applied here.

 

[Rectifier]

I don't see why it can't be applied here.

Alright so I have the mass which is 1μg. But how can I turn that u thingy into M?

 

[insightful]

Doesn't M=59.934 g/mol ?

 

[Rectifier]

Then there is 1.668507... × 10^-8mols in 1 microgram Co-60. Thank you.