Ethyl chloride,C₂H₅Cl,is used as a local anesthetic.It works by cooling tissue as it vaporizes;its heat of vaporization is 26.4 kJ/mol.How much heat could be removed by 10.0 g of ethyl chloride? A)4.09 kJ B)170 kJ C)264 kJ D)1700 kJ

Question

Quizplus · Accepted Answer

The molar mass of ethyl chloride (C2H5Cl) is approximately 64.5 g/mol. To find the amount of heat removed, first calculate the moles of ethyl chloride: 10.0 g / 64.5 g/mol = 0.155 moles. Then, multiply by the heat of vaporization: 0.155 moles * 26.4 kJ/mol = 4.09 kJ.

Ethyl Chloride,C2H5Cl,is Used as a Local Anesthetic

Ethyl Chloride,C₂H₅Cl,is Used as a Local Anesthetic