# Conversion from molar mass to mols

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1. Sep 2, 2015

### 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 cant really ply it here it seems.
Can anyone help me please?

2. Sep 2, 2015

### insightful

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

3. Sep 2, 2015

### Rectifier

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

4. Sep 2, 2015

### insightful

Doesn't M=59.934 g/mol ?

5. Sep 2, 2015

### Rectifier

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