Fractional distillation of a mixture of 1: 1 ethyl acetate (b. p. 77.5°c) and 1-butanol (b. p. 117.0 °c) was performed, and differecns were collected. describe in detail, how many different fractions you will collect collect. pure or not? b. plot a graph for the fractional distillation data you will c. how can you use ir to check if the final fraction is pure or not?

(newtons first law)

conservation of momentum law states :

momentum before collision = momentum after collision

momentum p (kg-m/s)= mass * velocity

say moving car=1 000 kg, velocity = 10 m/s then p = 1 000*10= 10 000 kg-m/s

say still car = 2 000 kg, velocity = 0 m/s then p = 2 000* 0 = 0 kg-m/s

total momentum prior to collision = 10 000 + 0 = 10 000 kg-m/s

momentum after collision = 10 000 kg-m/s

mass now = 1 000 kg+2 000 kg = 3 000 kg

10 000 = 3 000 kg* velocity m/s

10 000/3 000 = velocity

3.33 m/s = velocity after collision

an impulse is a force applied over time , momentum is exclusive of external forces and a perfect collision is implied

d) a person who learns about the world by observing it.

explanation:

scientist are people who discover why and how things are done and made in the world.