Question

How many grams does 6.60 x 10^22 molecules of SiO weigh?

Answer 1

mass = 6.56 grams

Step-by-step explanation:

No of molecules = No of moles × Avogadro's constant

Similarly, number of moles = mass/ molar mass

∴

`\text{number of molecules} = (mass )/(molar mass)}* avogadro's \ no`

`6.60*10^(22)}} = (mass )/(60.0 \ g/mol) * 6.022 * 10^(23)`

`6.60*10^(22)}}* 60.0 \ g/mol =mass* 6.022 * 10^(23)`

`mass = (6.60*10^(22)* 60.0 \ g/mol)/(6.022 * 10^(23))`

mass = 6.56 grams