2016/06/30—Advanced Course in Molecular Environmental Science 1

June 30, 2016

Advanced Course in Molecular Environmental Science 4

schedule

(1) Apr 14 introduction with introduction(2) Apr 21 mole and Avogadro constant(3) Apr 28 necessary and sufficient conditions/Mt. Everest(4) May 12 microwave oven/Internet(5) May 19 originality in science/fake(6) May 26 experimental notebook(7) Jun 16 blood type/chi-square (chi-squared) test(8) Jun 23 cell(9) Jun 30 triple crown(10) Jul 7 recycle and ecology(11) Jul 14 green-house effect/correlation(12) Jul 21 recognition/XXXed(13) Aug 4 presentation of quiz(14)(15)

Advanced Course in Molecular Environmental Science 5

quiz

• nickname• quiz• expected answer/correct answer• explanation for how the quiz is beneficial for understanding

chemistry and science• results of the internet search for the quiz

Send email by July 31, 2016• Use of texts in email, not using a Microsoft Word file

attachment, is preferable, or• Send a Microsoft PowerPoint file for slides of "quiz

(nickname)" and "the others" by file attachment.

ohtani@cat.hokudai.ac.jp

Advanced Course in Molecular Environmental Science 6

the best question and answer

Q Which is the best question? Answer the nickname.Q Which is the best answer? Answer the nickname.

北海道（離島をのぞく）の面積と海岸線の総延長をもとめる方法を説明してください．Interpret the ways for evaluation of area and total length of the coastline of Hokkaido Island.

2016/06/30—Advanced Course in Molecular Environmental Science 3

today's topic = grasping in chemistry

What is a cell (denchi)? Interpret in a sense of chemistry.What kind of cell do you imagine?

(1) storing electrical energy as chemicals and converting them into electrical energy

(2) converting certain energy into electrical energy

Find the hidden concept(s) !

2016/06/30—Advanced Course in Molecular Environmental Science 4

energy conversion in various cells

• primary cell: [chemical] (electrical)

• secondary cell (rechargeable battery): lead battery/lithium-ion battery(electrical) [chemical] (electrical)

• solar cell: silicon solar cell(photo) (electrical)

• dye-sensitized solar cell(photo) (chemical) (electrical)

• fuel cell(chemical) (electrical)

2016/06/30—Advanced Course in Molecular Environmental Science 5

today's topic = what is the goal of scientists

triple crown

triple crown 6

In Major League Baseball, a player earns the Triple Crown when he leads a league in three specific statistical categories. For batters, a player must lead the league in home runs, runs batted in (RBI), and batting average; pitchers must lead the league in wins, strikeouts, and earned run average (ERA)

"triple crown" in baseball

Lou Gehrig Ted Williams

Japanese

triple crown 7

"triple crown" in science

QWhat is triple crown in science?"Name" is recorded in

an award, e.g. Nobel Prizename of reaction or principleunitname of societies or journalsadjective

QWho is/are "triple crown" in science?

triple crown 8

"triple crown" in science

QWhat is triple crown in science?"Name" is recorded in

an award, e.g. Nobel Prizename of reaction or principleunitname of societies or journalsadjective

QWho is/are "triple crown" in science?Maria Skłodowska-Curie (1867-1934), Albert Einstein (1879-1955), Michel Faraday (1791-1867), Isaac Newton (1642-1727), Max Karl Ernst Ludwig Planck (1858-1947)

triple crown 9

"triple crown" in science

QWhat is triple crown in science?"Name" is recorded in

an award, e.g. Nobel Prizename of reaction or principleunitname of societies or journalsadjective

QWho is quintuple crown in science?

Langmuir 10

"triple crown" in science

QWhat is triple crown in science?"Name" is recorded in

an award, e.g. Nobel Prize 1932 in Chemistryname of reaction or principle ... isotherm/...-Blodgett filmunit Langmuir, a unit of "exposure"name of societies or journals Langmuiradjective Langmuirian

QWho is quintuple crown in science?Irving Langmuir (1881-1957)

Langmuir 11

The Solvay Conferences on Physics

The 5th conference "Radiation theory and quantum" was organized by Solvay and Nernst, who was a supervisor of Langmuir. Langmuir and Lewis proposed "Octet Model" of

chemical bonds.

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Langmuir 12

The Solvay Conferences on Physics

The 5th conference "Radiation theory and quantum" was organized by Solvay and Nernst, who was a supervisor of Langmuir. Langmuir and Lewis proposed "Octet Model" of

chemical bonds.

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Langmuir 13

Lewis-Langmuir theory

assuming "octet" and put electrons at the corners

bonds are made to fill up the cornerssingle bond: ridge sharing/double bond: face sharing

Langmuir 14

Lewis-Langmuir theory

Hydrogen cannot fill up all the cornersimpossible to show triple bonds

showing electrons by dots and arrange 8 dots around an atom

Langmuir 15

a scientific journal, Langmuir

published by the American Chemical Societyin the field of surface, interface and colloids (physical chemistry)

Langmuir ranks #2 in citations out of 121 journals in the category of Physical Chemistry with 84,792 total citations. The journal received an ISI Impact Factor of 3.898, and published 2,000 articles in 2009*.

Langmuir 16

Langmuir-Blodgett films

developing molecules having hydrophilic and hydrophobic partshydrophilic part facing to water/interaction among hydrophobic parts

Langmuir 17

going out of a light bulb

General Electric (GE), founded by Thomas Edison, developed and manufactured light bulbs with tungsten filaments.

Tungsten is less volatile due to its high melting point (3407 deg C) and shows high electric resistivity; a good material for filaments.

"Impurity" in a bulb leads to going out.

QWhy light bulbs with a tungsten filament goes out?What is the impurity?

Langmuir 18

going out of a light bulb

General Electric (GE), founded by Thomas Edison, developed and manufactured light bulbs with tungsten filaments.

Tungsten is less volatile due to its high melting point (3407 deg C) and shows high electric resistivity.

"Impurity" in a bulb leads to going out

Afilament becoming thin due to "Langmuir cycle"

Langmuir 19

Langmuir cycle

W

H2O

WO3

H2 WO3

W

• Water, impurity, is adsorbed on tungsten surface and leads to formation of tungsten oxide (low melting point) and hydrogen.

• Volatilization of tungsten oxide to be deposited on an inner glass face.• Reaction of tungsten oxide with hydrogen produces water leaving

tungsten on the glass surface.

Langmuir 20

contribution of Langmuir

research work in GEHe found that adsorption of water should be avoided and that filling up

inert gas, e.g., argon is effective.considered correlations between pressure of gas and amount of

adsorption, leading to "Langmuir isotherm"

Langmuir's theory on adsorption• applicable to almost all adsorptions, especially those occurring in liquid

phase• can be derived theoretically• often combined with kinetic equation for catalytic (photocatalytic)

reactions

2016/06/30—Advanced Course in Molecular Environmental Science 21

today's topic = what is the goal of scientists

triple crown

(1) simple and easily understandable(2) open for everybody

XXX'ed!!!（○○○た！）

2016/06/30—Advanced Course in Molecular Environmental Science 22

comments on this lecture and question

Please send email in Japanese or English within 48 hours

to: ohtani@cat.hokudai.ac.jpsubject: me20160630-XXXXXXXX(your id number)

me20160630-XXXXXXXXzzz@yyy.hokudai.ac.jp<full name><nickname><comments on today's lecture><question(s): at least one>

2016/06/30—Advanced Course in Molecular Environmental Science 23

sample mail

to: ohtani@cat.hokudai.ac.jp

subject: me20160630-12345678

me20160630-12345678

zzz@yyy.hokudai.acjp

大谷文章

某教授

今日の講義ではなぜ講義名が「分子環境学特論I」なのかはわかりませんでしたが，これからの講義がすこし楽しみです．

先生はなんでそんなにモテるんですか．