Question

the chemical compound C2F4 is used to make PTEE (Teflon). How manyC2F4 molecules are in 485 kilograms of this material?

Answer 1

`molecules=2.92x10^(27)moleculesC_2F_4`

Step-by-step explanation:

Hello,

In this case, we use the Avogadro's number to compute the molecules of C2F4 whose molar mass is 100 g/mol contained in a 485-kg sample as shown below:

`molecules=485kgC_2F_4*(1000gC_2F_4)/(1kgC_2F_4) *(1molC_2F_4)/(100gC_2F_4)*(6.022x10^(23)molecules C_2F_4)/(1molC_2F_4) \\\\molecules=2.92x10^(27)moleculesC_2F_4`

Best regards,