Question

1.Write a procedure for how you would determine the density of your Gak. Write your procedure as though a student new to chemistry was going to need to follow the directions in order to repeat your process . What equipment including size of equipment would you use? Step by step directions are a good idea. Be descriptive. (Assuming Gak is not water soluble.) 2.Could you determine if a substance was organic or inorganic if all you were told was that it was colorless? Support your answer. 3. A clear liquid with a gasoline-like odor forms a layer when added to water. Would you expect it to be an organic or an inorganic substance? Support your answer with specific characteristics of organic and inorganic substances.

Answer 1

1. since the object is not water soluble and irregular in shape, volume can be measured by indirect method.
a) pour water into the graduated measuring cylinder until it reaches a known level.
b) mark this level as the volume of water in measuring cylinder.
c) add the Gak to the water and the record the new water level in measuring cylinder.
d) the difference in the water level i.e. between the new water level and original level will be the Gak's volume
Mass can be calculated by using weighing balance.
then Density will be the mass divded by volume.

2. Organic compounds usually comprises of carbon and hydrogen and sometimes oxygen, nitrogen and sulphur also. They are generally non polar so most of them are insoluble in water.
You can also distinguish between organic and inorganic substances by using flame tests.

3.