Question

For this one do we multiple the molar mass to 4.25

Answer 1

`0.152\text{ moles CO}`

Step-by-step explanation:

Here, we want to get the number of moles in 4.25 g of CO

To get the number of moles, we have to divide the mass by the molar mass of CO

Mathematically:

`Number\text{ of moles = }\frac{mass}{molar\text{ mass}}`

The molar mass of CO is the sum of the atomic masses of carbon and oxygen

The atomic mass of carbon is 12 amu

The atomic mass of oxygen is 16 amu

The molar mass is thus:

`12\text{ + 16 = 28 g/mol}`

Thus, we have the number of moles as:

`(4.25)/(28)\text{ = 0.152 moles CO}`