Titanium Dioxide (TiO2) is an industrial chemical used as a white pigment in paint. The conversion of volatile TiCl4 to TiO2 occurs according to the following reaction: 1 TiCl4(g) + 1 O2(g) --> 1 TiO2(g) + 2 Cl2(g)

Using the above reaction, calculate the percent yield of Cl2 if 18.6 g TiCl4 reacts with an excess oxygen to give an actual yield of 9.9 g Cl2.

first let us lay out the formula for potential

and kinetic energy:

pe = mgh

ke = (mv^2)/2

where: m=mass, v=velocity, g=gravitational

acceleration, h=height

calculating for mass using the known values of

pe:

340j = m (9.81 m/s^2) (50ft) (1m/3.28ft)

m = 2.27 kg

the law of conservation of energy states that

energy is neither created nor destroyed. therefore, the change in kinetic

energy from 50 ft to 35 ft would be equal to the change in potential energy

from 50 ft to 35 ft. however it would be opposite in signs since one is losing

while other is gaining.

ke(35ft) – ke(50ft) = - [ pe(35ft) – pe(50ft]

ke(50ft) = 0 since the brick is initially at rest

ke(35ft) = 340j - 2.27kg (9.81 m/s^2) (35ft)

(1m/3.28 ft)

ke(35ft)

= 102.38 j

dynamic equilibrium is the answer.