How to not want to attend classes or if the lectures are ineffective

If you don't learn, you've thought about it, you're thinking about fart.

College chemistry should be for non-chemistry majors, and inorganic chemistry is a compulsory course for many chemistry-related majors. The depth of study is different, and the requirements of the syllabus are also different, and theoretically college chemistry is simpler than inorganic chemistry.

Classes in college are not like high school...There are no questions on the exam. These are all typical example questions.

Therefore, the example questions in the book cannot be let go. In other words, it is very difficult to fail a university course.

But if you want to learn well, you have to do more questions. Don't do the same type of problem and do it in different ways.

Undergraduate or Graduate ???

In the case of undergraduates. Read the textbook twice. Do the exercises... Do your homework. That's it ...

The study of inorganic chemistry requires careful listening to the teacher's knowledge during class, paying attention to the teacher's analysis process, and it is best to prepare in advance.

University teachers generally use ppt to give lectures, so it is very fast Preview is conducive to keeping up with the pace of the teacher Take some time to review after class It's basically the same I hope you learn and progress.

(1) After mixing, mol l of ammonium chloride solution is obtained, which is calculated by the formula of weak acid [H+], and the simplest formula is used here.

h+] = root number (c*ka) = root number ( = mol lph =

2) After mixing, mol l of ammonium acetate solution was obtained, which was calculated with the formula of weak acid and weak alkali salt [H+].

h+] = root number[ ka*kw*c kb*(ka+c)] Since c is much larger than ka, ka in parentheses can be ignored, and the formula is simplified to [h+] = root number (ka*kw kb).

Root number (mol l

pH =3) to obtain mol l of sodium acetate solution. This is the same as (1), except that the weak acid is replaced by a weak base.

oh-] = root number (c*kb) = root number ( = mol l[h+] = 10 -14 ( = mol lph =

Organic chemistry. The chemistry of carbon compounds, also known as carbon compounds, is a discipline that studies the structure, properties and preparation of organic compounds, and is an extremely important branch of chemistry. Carbonaceous compounds are called organic compounds because chemists in the past believed that carbonaceous substances must be made by living organisms (organisms); However, in 1828, the German chemist Friedrich Wühler succeeded in synthesizing urea (a biomolecule) in the laboratory, and since then organic chemistry has expanded beyond the traditional definition to the chemistry of carbon-containing substances.

However, the general argument for progeria does not include CO, CO2, and carbonates).

Inorganic chemistry is a branch of chemistry that studies the preparation, structure, properties, changes and applications of elements, elemental and inorganic compounds. For the comprehensive utilization of mineral resources, the production and research of inorganic raw materials and functional materials in modern technology are of great significance. At present, inorganic chemistry is in a new era of vigorous development, with the rapid rise of many marginal fields and the continuous expansion of research scope.

It has formed the fields of inorganic synthesis, abundant element chemistry, coordination chemistry, organometallic chemistry, inorganic solid chemistry, bioinorganic chemistry and isotopic chemistry.

Inorganic chemistry is a compulsory course for university chemistry and chemical engineering-related majors. In fact, the main reason is that the research object is different.

College Inorganic Chemistry, except for the elemental part of the second volume, the first volume is basically a condensed version of physical chemistry, analytical chemistry, and structural chemistry.

The latter courses, plus organic chemistry, are a total of 5 courses, and are called the "four major chemistry", and structural chemistry belongs to physical chemistry, but it is generally taught separately in China.

The content of the inorganic chemistry course is basically these pieces (this is the table of contents of Song Tianyou's 4th edition of the book on inorganic chemistry of jujube red skin).

Chapters 2–11 are the main point.

Chapter 1 Overview.

Chapter 2 Fundamentals of Chemistry.

Chapter 3 Fundamentals of Chemical Thermodynamics.

Chapter 4 Chemical Reaction Rates.

Chapter 5 Chemical Equilibrium.

Chapter 6 Atomic Structure and the Periodic Law.

Chapter 7 Overview of Chemical Bond Theory.

Chapter 8 Acid-Base Dissociation Equilibrium.

Chapter 9 Precipitation-dissolution equilibrium.

Chapter 10 Redox Reactions.

Chapter 11 Coordination Chemistry Basics.

Chapter 12 Alkali Metals and Alkaline Earth Metals.

Chapter 13: Boron Elements.

Chapter 14: Carbon Group Elements.

Chapter 15: Nitrogen Elements.

Chapter 16: Oxygen Elements.

Chapter 17: Halogens.

Chapter 18 Hydrogen and Noble Gases.

Chapter 19 Copper Paragroup Elements and Zinc Subgroup Elements.

Chapter 20 Titanium and Vanadium Paragroup Elements.

Chapter 21 Chromium Subgroup Elements and Manganese Subgroup Elements.

Chapter 22 Iron and platinum elements.

According to BAI

The gas equation of state pv=nrt, find the total amount of matter in the body after equilibrium is: n=pv rt= according to the dao equation: the weight of the substance of no2 at the beginning of version 2no2=n2o4 is set to equilibrium when the amount of matter of n2o4 is x, the amount of no2 is , and the molar fraction of x= is obtained and the partial pressure of the molar fraction of x= is:

The partial pressure of p=nrt v= is: p=nrt v=(

Because the specific teaching situation of each school is different, we can only give you a few suggestions based on our experience in learning inorganic chemistry

1.Read more books, read notes, and the teacher's PPT is especially important. Generally, the content of the principles involved in the final exam is relatively small, and it is basically the application of chemical theories, so it is necessary to memorize the content and usage of various theories.

2.The final examination of inorganic chemistry focuses on the principles of chemical reactions and the basis of material structure (including gas, thermodynamic laws, chemical reaction kinetics, chemical equilibrium, acid-base equilibrium, coordination equilibrium, dissolution equilibrium, electrochemistry, atomic structure, molecular structure, crystal structure, solid structure, etc.).

3.Do more questions, especially the teacher's classroom example questions and homework questions, as well as the after-class questions after the textbook, you must be proficient, even if the principle is not very clear. The small questions in the exam are mainly to test the mastery of basic theories, such as writing the atomic orbital arrangement, molecular orbital arrangement, judging the direction of the chemical reaction according to the electrode potential, Gibbs function variable, calculating the equilibrium constant, calculating the pH value, the reaction progress, using the Nernst equation to calculate the non-standard electrode potential, etc.

In fact, I think the most important thing in inorganic chemistry is to memorize and be proficient. At that time, I could basically say that I took the exam after memorizing all the PPTs of the teacher, so this is very important.

I did it manually, and I didn't do the first big question and the sixth small question before I learned it. The second big question, the first small question, the default temperature is 298k, without saying it.

Not a standard answer, and the statement is not necessarily accurate. Definition-related questions are verified, but please refer to your own textbook descriptions.

The words are ugly, messy, forgive me.

This is very rare for you to ask a professional chemistry teacher to get such a question. We ordinary people can't solve it.

Yes, if you don't know it, you can ask the teacher, and your teacher will also give you some help. Then talk to your classmates.

This word is too small, can you make it bigger, and help you solve it.