How many molecules of carbon dioxide (CO2) are there in 69.56g of carbon dioxide?

9.52 x 10²³molecules

Explanation:

Given parameters:

Mass of carbon dioxide  = 69.59g

Unknown:

Number of molecules  = ?

Solution:

To solve this problem, we must understand:

      1 mole of a substance  contains 6.02 x 10²³ molecules

Now, first find the number of moles of carbon dioxide;

 Number of moles  =  

 Molar mass of carbon dioxide  = 12 + 2(32)  = 44g/mol

  Number of moles  =   = 1.58moles

So;

          1 mole of a substance  contains 6.02 x 10²³ molecules

       1.58moles of carbon dioxide will contain 1.58 x  6.02 x 10²³

                                                                 = 9.52 x 10²³molecules

i just learnt this recently but i need to look through my notes again

the dependant variable is spilled water

the independent is the heat