Question

How many moles of c are in 440 mg of co2?

Answer 1

According to the Mole-mass conversions....

Since Mass of = 440 mg (given)

440 mg of CO2 x (1g / 1000 mg) x (1 mole of CO2 / 44.0g of CO2) x (1 mole C / 1 mole of CO2)

= 0.010 mole C

This is the required solution of the mole-mass conversion.

Answer 2

The formula of number of moles is:

`number of moles = (mass of compound or element)/(Molar mass of compound/element)` -(1)

Mass of
`CO_2` = 440 mg (given)

Since, 1 mg = 0.001 g

So, 440 mg = 0.44 g

Molar mass of
`CO_2` =
`12+ 2 * 16 = 44 g/mol`

Substituting the values in formula (1):

Number of moles of
`CO_2` =
`(0.44 g)/(44 g/mol) = 0.01 mole`

Since, in 1 mole of
`CO_2` there is 1 mole of
`C`.

So, number of moles of
`C` in 0.01 mole of
`CO_2` is 0.01 mole.

Hence, the number of moles of
`C` in 440 mg of
`CO_2` is 0.01 mole.