# How many grams of #Cr(NO_3)_2# are in 8.4 mole?

##### 2 Answers

#### Answer:

Chromous nitrate,

#### Explanation:

You have an

#### Answer:

Hi there!

With

#### Explanation:

To figure this out, note the relationship between mass, molar mass and moles whereby:

n (moles) = mass/molar mass...

or if you're more of a visual oriented learner, I will show the unit conversion/dimensional analysis method! Either will work!

Let's start off with what you're given:

n = 8.3

m (mass in grams) = ?

M (molar mass) =

Now you know n and M, you can find m using the aforementioned expression! Substituting in you get:

You can also use unit conversion/dimensional analysis whereby:

Therefore, in 8.3 moles of