- #1

chawki

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## Homework Statement

a) What is the mass of one mole of Ca(NO

_{3})

_{2}?

b) How many Ca

^{2+}ions are there in 0.05 moles of Ca(NO

_{3})

_{2}?

c) How many moles ofNaCl are there in 450 g of this substance?

(Avogadro’s number is 6.022*10

^{23}1/mol.)

## Homework Equations

## The Attempt at a Solution

a)

m=n*M=1*164.1

m=164.1g

b)

I have NO IDEA, help me

c)

n=450/75.53

n=5.95mol