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Quiz1: 20 minutes to take quiz 1 Your name (pin yin) and student number and today’s date at top Then we will go over answers to quiz

Quiz 1: Write your name, and ID number at top of page. Then write the answers to 1-8 in English. 1) What is your major (for example, chemistry or chemical engineering or physics)? 2) What is the two letter symbol for the element silicon? 3) Molarity is a measure of what quantity? What are SI units of Molarity? 4) What scientific instrument does the acronym "NMR" stand for? (please write our its full name). 5) How much would 0.2 moles of 3-(trimethoxysilyl)propyl methacrylate weigh? 6) What is a polymer? 7) If the rate, R, of a reaction was shown to have a simple, first order dependence on water concentration and a first order dependence on the reactant concentration, write the reaction rate equation. 8) According to the scientific method, what should a researcher do once she has made a hypothesis to explain some of her observations?

Answers to quiz1 Do not show to students until after quizes turned in.

Quiz 1 Problem 1: What is your major (for example, chemistry or chemical engineering or physics)?

2) What is the two letter symbol for the element silicon?

2) What is the two letter symbol for the element silicon? Si

3) Molarity is a measure of what quantity? What are SI units of Molarity?

3) Molarity is a measure of what quantity? Concentration What are SI units of Molarity? Moles/Liter

4) What scientific instrument does the acronym "NMR" stand for? (please write our its full name).

4) What scientific instrument does the acronym "NMR" stand for? (please write our its full name). Nuclear Magnetic Resonance

5) How much would 0.2 moles of 3- (trimethoxysilyl)propyl methacrylate weigh?

5) How much would 0.2 moles of 3- (trimethoxysilyl)propyl methacrylate weigh? # g = 0.2 moles x g/mole = 49.7 g

What is a polymer?

A polymer is a macromolecule (a very large molecule) composed of many small molecules (monomers) covalently bonded together in some fashion. Generally, greater in molecular weight than 10K g/mole.

7) If the rate, R, of a reaction was shown to have a simple, first order dependence on water concentration and a first order dependence on the reactant concentration, write the reaction rate equation.

Rate = k[H 2 O][reactant]

8) According to the scientific method, what should a researcher do once she has made a hypothesis to explain some of her observations?

Design and conduct experiments to test hypothesis by trying to disprove it.