States of Matter

Lab Report
Author Name
University Name
Introduction
Matter mainly exists in three forms: solid, liquid and gases, all of which possess their own properties. It should be noticed that the state of matter, as well as its color, different from one form to another. For example, the solid’s color is likely to be white, black, brown, blue, etc., but the liquid does not contain any color until or unless it is reacted with another liquid, solid or gas at room temperature or the high temperature. Similarly, the gases can be compressed and contain free molecules. When it comes to classifying matter, we mostly observe the change in color of the provided matter, as well as see how it reacts with other elements or compounds. Unlike a gas, the liquid and solid have their distinct volumes, meaning their molecules and atoms cannot move here and there freely. However, if they are heated at the significantly high temperature, the free movement of their molecules gets lost, and they may change their shape, and color, occupying the same of the container or beaker in which the solid or liquid has been heated. The properties of matter need to be understood at the molecular level before it is classified, and sometimes different elements or compounds are mixed together to form an entirely different solution. A pure substance was used in this lab experiment and divided into elements and compounds in order to study their features and observe the changes in their colors before the results could be presented.
Data
Weight of unknown

Unk + vial/bag

vial

Unk


wt in grams (+/- .01 g)

4.74

0.35

4.38

Pre-weigh Containers for components
(+/- .01 g)

Evaporating Dish

Watch Glass

Beaker

Filter Paper


wt in grams (+/- .01 g)

160.2

159.6

96.5

0.93

Weight of component 1 of Unknown

WeighingFirst

Weighing2nd

Weighing3rd

Weighing4th


Substance 1 with evap dish & watch glass

100

100

99

96

Weight of component 2 of Unknown
Dry to a contstant weight (until difference between weighings is no more than .03 g). Record weight to +/- .01 g.

WeighingFirst

Weighing2nd

Weighing3rd

Weighing4th


Substance 2 with filter paper & beaker

160

159

159

93

Observations of Mixtures

Observations


1. Sodium Hydroxide and Hydrochloric Acid

NaOH(aq)(aq) + HCl(aq)(aq) → NaCl(aq)(aq) + H22O(l)
The solution of sodium hydroxide and hydrochloric acid got heated and its color changed significantly. The reaction could boil explosively, so to avoid that, we had to heat the solution slowly.

2. Magnesium and Hydrochloric Acid

Mg(s) + 2 HCl(aq) --> MgCl2(aq) + H2(g)
Magnesium proved to be flammable, so it was mixed with that of hydrochloric acid at relative...