Question

A salt shaker contains 8.75 x 1022 formula units of sodium chloride. How many moles is this?​

Answer 1

`\huge\boxed{\sf No.\ of\ moles = 0.145\ moles}`

Step-by-step explanation:

Given data:

No. of particles = 8.75 × 10²² units

Avogadro's number = 6.022 × 10²³

Required:

No. of moles = ?

Formula:

Number of moles = No. of particles / Avogadro's number

Solution:

No. of moles = 8.75 × 10²²/6.022 × 10²³

No. of moles = 1.45 × 10⁻¹

No. of moles = 0.145 moles

`\rule[225]{225}{2}`