# A chemist weighed out 3.89 g of nickel. What is the number of moles of nickel she weighed out?

##### 1 Answer

Apr 17, 2016

She measured out **0.0663 mol of nickel**.

#### Explanation:

For this question, we need to use the Periodic Table to find the molar mass of

The formula for molar mass is

#color(blue)(|bar(ul(color(white)(a/a) "molar mass" = "mass"/"moles"color(white)(a/a)|)))" "#

We can rearrange the formula to read

#"moles" = "mass"/"molar mass"#

∴