Question

Determine the number of moles in 4.69 x 10^23molecules of glucose.

Answer 1

`\huge{ \boxed{0.779 \: \text{moles}}}`

Step-by-step explanation:

To find the number of moles in a substance given it's number of entities we use the formula;

`\bold{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 = 4.69 × 10²³ glucose molecules

`n = \frac{4.69 * {10}^(23) }{6.02 * {10}^(23) } = (4.69)/(6.02) \\ = 0.77907`

We have the final answer as

0.779 moles