Organic chemistry lab 1 Study guides, Class notes & Summaries

Organic Chemistry Module 8 Portage 219 TEST EXAM FINALS QUESTIONS WITH 100% VERIFIED SOLUTIONS Polymer - ANSWER large molecule made by repetitive linking of smaller units (monomers) Macromolecule - ANSWER very large molecule composed of thousands of covalently bonded atoms (ex: polymer) 1. natural (in nature) 2. synthetic (in lab) - ANSWER two ways polymers are made rubber, carbs: starch & cellulose, proteins, nucleic acids DNA, RNA - ANSWER natural polymers nylon, teflon, sty...

CHEM 219 Module 1 Problem Set Principles of Organic Chemistry with Lab Gallaher Portage Learning. Score for this quiz: 10 out of 10 Submitted Jul 25 at 8:42pm This attempt took 1,135 minutes. Question 1 0 / 0 pts Your Answer: On a piece of scratch paper, write out the Lewis Dot Diagram for each of the indicated elements and determine the following for each: a) The number of Lone Pairs the atom possesses in its valence shell. b) The number of Unpaired Electrons the atom possesses in its...

Organic Chemistry Module 8 Portage 219 100% VERIFIED SOLUTIONS Polymer - ANSWER large molecule made by repetitive linking of smaller units (monomers) Macromolecule - ANSWER very large molecule composed of thousands of covalently bonded atoms (ex: polymer) 1. natural (in nature) 2. synthetic (in lab) - ANSWER two ways polymers are made rubber, carbs: starch & cellulose, proteins, nucleic acids DNA, RNA - ANSWER natural polymers nylon, teflon, styrofoam, polyethylene, Dacron, - AN...

CHEM 120 Quiz 4 (Version 1), CHEM 120: Introduction to General, Organic & Biological Chemistry with Lab, Verified and Correct Answers, Chamberlain College of Nursing.

Lab 1: Isolation of essential oils Why did we use steam distillation? - Steam distillation is used for temperaturesensitive compound which is immiscible in water. - In order to boil, the vapor pressure of liquid = vapor pressure of atm. Water and oil are immiscible. Therefore, they both contribute to vapor pressure. As a result, the mixture will start boiling at lower temperature than each of the compound does => we don't want to heat the mixture at the compound boiling point, it...

Physical properties can be useful toDetermine structure Determine purity of substance If not pure, determine how to separate contaminating substances from a compound What can you get from melting point?Identify and purity of an organic solid. Define melting pointWhen the temperature at which the solid and liquid states are in equilibrium. What's the range at which most organic substances melt?50 - 250 C What's the range at which inorganic substances usually melt?300 - 1500 C What subs...

How should BP of a liquid be reported?As a boiling range How does temperature affect the vapor pressure of a liquid?As temperature increases, vapor pressure increases Suppose you will be distilling 50 mL of an impure liquid. What size of distillation flask(s) should you use?100 and 150 mL What is the purpose of using boiling stones?To relieve minor hot spots on the distillation flask and prevent vigorous eruption of bubbles (bumping) What should be the temperature difference in the liq...

The three principal reasons for determining the mp range of a solid (For what reason(s) would someone be interested in determining the melting point (mp) range of a compound 1) Determination of purity 2) Establishing an unknown solid's identity 3)Reporting new physical property data on a compound never before isolated/made Purpose of this experiment To experimentally determine the effect of impurity (urea) on the mp range of a pure substance Draw trans-cinnamic acid Draw urea