I am an experienced college chemistry
professor and environmental scientist. I have taught chemistry at the college level for more than 25 years. Courses taught include introductory chemistry, general chemistry, allied health/nursing
/GOB chemistry, chemistry in society (for non-science
majors), physical science
(for future teachers), advanced inorganic chemistry, and analytical chemistry. I can help you with your high school or AP test, on SAT
, and in your college or university courses. If I cannot help on a particular topic, I will do my best to let you know in advance. I don't know everything, but I have a proven track record of helping thousands of students learn chemistry at many levels, from beginning to advanced.
While you're taking a chemistry course, I can provide help when you need it and give you ideas on how to study more effectively. You'll soon find that it's far better to "study well" than to "study hard." As your tutor, I will encourage you to communicate directly with your teacher more frequently so that, in time, you will take charge of your own learning and have need for a tutor less often. If you're studying for an exam, I can work with you, providing practice problems and analysis, up to the exam date. After the exam, I will help you analyze your results so that you'll gain from the experience. I realize that your need for assistance will vary as you learn more chemistry and that some topics are tougher to learn than others, and I will work with you to determine your best use of my tutoring services.
I have high standards for my work and strive to improve with each lesson. To that end, I appreciate getting feedback from you. After each lesson, I will send you a lesson review that summarizes the topics we covered, the objectives for the session, an assessment of student learning progress, and ideas or plans for future lessons. My time is valuable, and I do try to be as flexible as possible. While I do have a 24-hour minimum cancellation policy, I also offer makeups for missed sessions.
My emphasis has always been helping individual students to learn how to learn chemistry. I don't like taking short cuts and I love seeing the moments when students "get" it. I will help you learn the chemistry you need to learn, and I will do my best to help you understand why you're learning it and how you'll apply it in future studies. I want to make chemistry fun, relevant, and easy for you. Let's get started.
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With the larger alkanes, you adding a smaller percentage of extra mass and surface area, so the increases in intermolecular forces, and thus BP, are not as large, relatively. From methane to ethane, you're nearly doubling everything.
From nonane to decane, the increase is less than...
First you need a balanced chemical equation for the reaction.
Next you can plan out your calculation. It will go something like this:
grams of Zn → moles of Zn → moles of ZnI2 → grams of ZnI2
grams of I2 → moles of I2 →...
Great question, for a universe with no oxidizing agents strong enough to react with the sodium. (Note: that ain't our universe.) Anywayz...
"q = mCΔT" is always a good place to start when looking at absorption of heat from a substance in a single phase.