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### 20 results for "Richard H. Langley"

• #### Study Tips for Organic Chemistry II

Organic Chemistry II doesn’t have to be as difficult as you think. Follow these study tips to improve your understanding of organic chemistry, from carbon atom bonds to unnamed reactions, and everything

Found in: Chemistry
• #### Formulas for Solving Problems Dealing with Acids and Bases

Acid-base reactions and their associated calculations play a primary role in many chemical, biological, and environmental systems. Whether you’re determining hydrogen ion concentration,

Found in: Chemistry
• #### Derivative and Integration Formulas for Hyperbolic Functions

The hyperbolic functions are certain combinations of the exponential functions ex and ex. These functions occur often enough in differential equations and engineering that they’re typically introduced

Found in: Calculus
• #### Special Limit Formulas in Calculus

Many people first encounter the following limits in a Calculus textbook when trying to prove the derivative formulas for the sine function and the cosine function. These results aren’t immediately obvious

Found in: Calculus
• #### 1,001 Chemistry Practice Problems For Dummies Cheat Sheet

Solving chemistry problems is a great way to master the various laws and calculations you encounter in a typical chemistry class. This Cheat Sheet provides some basic formulas, techniques, and tips you

Found in: Chemistry
• #### Writing Electron Configurations

An electron configuration is a description of the relative locations of electrons in an atom or ion. Electron configurations are based primarily on three principles: the Aufbau principle, the Pauli exclusion

Found in: Chemistry
• #### Balancing Chemical Equations

A chemical equation shows what happens in a chemical reaction. As in any equation, the elements on the left side of the equation (the reactants) must equal the elements on the right

Found in: Chemistry
• #### Keeping Track of Units in Chemistry Calculations

When completing a chemistry calculation, always write the number with the unit. Number, unit — it’s like having a first and last name.

Consistently writing down the units allows you to see what cancels

Found in: Chemistry
• #### Organic Chemistry II: Directing Groups for Aromatic Systems

In an Organic Chemistry II class you often add groups to aromatic systems. If you’re wondering where the substitution will take place, check out this table for some guidelines. When using this table, remember

Found in: Chemistry
• #### Biochemistry's Acidic Amino Acids

Important to the study of biochemistry, aspartic and glumatic acids are negatively charged at physiological pH and polar. These two amino acids make up the acidic amino acid group and are represented here

Found in: Science
• #### Nonpolar (Hydrophobic) Amino Acids of Biochemistry

Amino acids play an important role in the study of biochemistry. The following nonpolar amino acids are hydrophobic, or water-hating. They don't gratefully interact with

Found in: Science
• #### Polar and Uncharged Amino Acids of Biochemistry

Except for glycine, the polar and uncharged (hydrophilic) amino acids can hydrogen bond to water and are usually more soluble than the nonpolar amino acids. The polar and uncharged amino acids studied

Found in: Science
• #### Career Opportunities in Biochemistry

Because of recent advances in biochemistry and biotechnology, many new professions have been created for biochemistry majors. Those who stop at the BS degree often find themselves working as technicians

Found in: Science
• #### Examining Some Genetic Diseases

Genetic diseases are the result of an abnormal pattern in the DNA of an individual. These diseases are inherited, though some individuals are only carriers and not sufferers. Recently, quite a bit of research

Found in: Science
• #### Sticky Chemistry: Intermolecular Forces

Intermolecular forces (forces between chemical species) are important in biochemistry. Among other things, intermolecular forces are important to hydrophilic

Found in: Science
• #### Examining the Physical Properties of Water

The medium in which biological systems operate is water, and physical properties of water influence the biological systems. Therefore, it is important to understand some properties of water that you learned

Found in: Science
• #### Biochemistry's Basic Amino Acids

Amino acids are important to the study of biochemistry because they're the building blocks of proteins found in all cells. The basic group of amino acids is represented here:

Found in: Science
• #### Biochemistry For Dummies Cheat Sheet

Studying amino acids (the building blocks of proteins, which humans need to grow and develop) is essential in biochemistry. The four subgroups of amino acids are

Found in: Science
• #### Organic Chemistry II For Dummies Cheat Sheet

Organic Chemistry II is one of the toughest courses you can take. Surviving isn’t easy — you probably know that from your Organic Chemistry I class. Preparation is key: If you study the right way, prepare

Found in: Chemistry
• #### Tips for Taking an Organic Chemistry II Exam

Taking an Organic Chemistry II test has a completely deserved reputation for being tough. Make life easier by following these tips before you take your next organic chemistry exam:

Found in: Chemistry

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