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