EVERYDAY SCIENCE

Detailed explanation-1: -Mole fraction is a unit of concentration, defined to be equal to the number of moles of a component divided by the total number of moles of a solution. Because it is a ratio, mole fraction is a unitless expression.

Detailed explanation-2: -What is the unit of mole fraction? Mole fraction is unitless.

Detailed explanation-3: -One mole contains Avogadro’s number (approximately 6.02214×1023) entities (atoms or molecules). A mole is much like “a dozen” in that both are absolute numbers (having no units) and can describe any type of elementary object (object made up of atoms).

Detailed explanation-4: -In chemistry, the most commonly used unit for molarity is the number of moles per liter, having the unit symbol mol/L or mol/dm3 in SI unit. A solution with a concentration of 1 mol/L is said to be 1 molar, commonly designated as 1 M.

Detailed explanation-5: -that contains 6.022 × 1023 particles. According to the previous definition, the amount of substance that contains as many species as present in 12 g of C-12, is known as a mole.