Chem Postlab Maeve

Philippine Science High School-Central Luzon Campus (S.Y. 2014-2015)
CHEMISTRY 1 QTR 3 POST-LAB REP 1
Alessandria Maeve M. Ocampo | 9-Samat | January 5, 2015

RESULTS AND DISCUSSION Solubility is the ability or property of a certain solute to dissolve in a particular solvent. [1] Miscibility, on the other hand, is the ability or property of substances to mix in all proportions or thoroughly. This term is usually used in the mixing of liquid substances. [2] In the experiment, the students observed the solubility and miscibility of some substances. Table 1 and 2 shows the solubility of salt, iodine, sugar, and naphthalene in different solvents. Table 3 and 4 shows the miscibility of substances to other liquid substances.
Compound
Water
Ethanol
V. Oil
NaCl
SOLUBLE
INSOLUBLE
INSOLUBLE
I2
PARTIALLY SOLUBLE
SOLUBLE
SOLUBLE
Sugar
SOLUBLE
PARTIALLY SOLUBLE
INSOLUBLE
Naphthalene
INSOLUBLE
PATIALLY SOLUBLE
SOLUBLE
Table 1. Solubility of some compounds in water, ethanol, and vegetable oil
Compound
Water
(Polar)
Ethanol
(Polar)
V. Oil
(Non-polar)
NaCl
(Non-polar)
UNLIKE
UNLIKE
LIKE
I2
(Non-polar)
UNLIKE
UNLIKE
LIKE
Sugar
(Polar)
LIKE
LIKE
UNLIKE
Naphthalene
(Non-polar)
UNLIKE
UNLIKE
LIKE
Table 2. Likeness of polarity of solutes and solvents
Compound
Ethanol
V. Oil
Acetone
Water
MISCIBLE
IMMISCIBLE
MISCIBLE
Ethanol
-------------
IMMISCIBLE
MISCIBLE
Acetone
MISCIBLE
IMMISCIBLE
--------------
V. Oil
IMMISCIBLE
-------------
IMMISCIBLE
Table 3. Miscibility of some liquid substances with each other.
Compound
Ethanol
(Polar)
V. Oil
(Non-polar)
Acetone
(Polar)
Water
(Polar)
LIKE
UNLIKE
LIKE
Ethanol
(Polar)
-----------
UNLIKE
LIKE
Acetone
(Polar)
LIKE
UNLIKE
------------
V. Oil
(Non-polar)
UNLIKE
-------------
UNLIKE
Table 4. Likeness of polarity of some liquid substances It is said in the principle of solubility that usually, like dissolves like. [3] This means that substances with similar polarity tend to dissolve with one another. By looking at Table 1 and 2 and comparing the

References: [1] Solubility. (n.d.). Retrieved from Solubility: https://www.chem.wisc.edu/deptfiles/genchem/sstutorial/Text11/Tx112/tx112.html [2] Senese, F. (2010, February 15). General Chemistry. Retrieved from General Chemistry: http://antoine.frostburg.edu/chem/senese/101/liquids/faq/miscible-immiscible.shtml [3] elcamino. (n.d.). Retrieved from elcamino: www.elcamino.edu