Question

How many moles are there in 8.5 x 10²⁵ molecules of co₂

Answer 1

`\huge{ \boxed{141.20 \: moles}}`

Step-by-step explanation:

The number of moles of the
`CO_2` molecules can be found by using the formula:

`n = (N)/(L)`

where:

n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question:

N = 8.5 × 10²⁵ molecules

`\therefore \: n = \frac{8.5 * {10}^(25) }{6.02 * {10}^(23) } \\ = 141.20 \: moles`

Answer 2

To determine the number of moles in 8.5 x 10²⁵ molecules of CO₂, divide the number of molecules by Avogadro's number. 141.3 moles are there in 8.5 x 10²⁵ molecules of CO₂

Step-by-step explanation:

To determine the number of moles in 8.5 x 10²⁵ molecules of CO₂, we need to use Avogadro's number, which is approximately 6.022 x 10²³.

Avogadro's number represents the number of particles (atoms, molecules) in one mole of a substance.

Therefore, we can calculate the number of moles as follows:

Number of moles = number of molecules / Avogadro's number
Number of moles = 8.5 x 10²⁵ molecules / (6.022 x 10²³ molecules/mol)

Calculating this, we find that there are approximately 141.3 moles in 8.5 x 10²⁵ molecules of CO₂.