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Propylene glycol is used in almost every commercially made body care product in the world. Cosmetic companies use it as an inexpensive substitute for a more expensive and natural ingredient, such as honey or vegetable glycerin. Calculate the number of moles in 1.50 × 10−3 grams of propylene glycol, C3H6(OH)2.

Respuesta :

The moles of Propylene glycol can be given by their mass in grams and the molar mass. The number of moles in 1.50 × 10⁻³ grams of propylene glycol, is 1.97 × 10⁻⁵ mol.

What are moles?

Moles are the fraction of the mass to the molar mass of the substance and give the amount of the sub-particle entities.

Given,

Mass = 1.50 × 10⁻³ grams

Molar mass = 76.09 g/mol

Moles (n) is calculated as:

N = Mass ÷ Molar mass

= 1.50 × 10 ⁻³ ÷ 76.09

= 1.97 × 10⁻⁵ mol

Therefore, moles of propylene glycol are 1.97 × 10⁻⁵ mol.

Learn more about moles here:

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