How many molecules in a #2.8*g# mass of CARBON DIOXIDE?

1 Answer
Jul 2, 2017

Answer:

#"Number of molecules"="Mass"/"Molar Mass"xx"Avocado Number....."#

Explanation:

And thus we get......

#(2.8*g)/(44.0*g*mol^-1)xx6.022xx10^23*mol^-1=??#

So how many.....Note that our quotient and product is dimensionless. We wanted a number, and we certainly got one.