It is desired to produce 2.25 grams of dichloromethane (ch2cl2) by the following reaction. if the percent yield of dichloromethane (ch2cl2) is 65.5 %, how many grams of carbon tetrachloride would need to be reacted?carbon tetrachloride methane (ch4)(g) + carbon tetrachloride(g) dichloromethane (ch2cl2)(g)

- 3.12 g carbon tetrachloride are needed.

Solution:- The balanced equation is:

From given actual yield and percent yield we will calculate the theoretical yield that would be further used to calculate the grams of carbon tetrachloride.

percent yield formula is:

percent yield =

theoretical = 3.44 g

From balanced equation, there is 2:1 mol ratio between dichloethane and carbon tetrachloride.

Molar mass of dichloroethane is 84.93 gram per mol and molar mass of carbon tetrachloride is 153.82 gram per mol.

=

So, 3.12 grams of carbon tetrachloride are needed to be reacted.

in chemistry, adhesion and cohesion are attractive forces that exist between molecules. they hold the molecules together from each other. they are different in that adhesive force exists between molecules of different substance while cohesive force happens between molecules of same substance.

adhesion between water and glass causes water molecules at the edge of water and glass interface to climb up the wall in a narrow glass tube. this is called capillary action. cohesion is what gives glass its shape and causes water to form a droplet.