# Basic Chemistry Concepts and Exercises by John Kenkel

By John Kenkel

Chemistry could be a daunting topic for the uninitiated, and all too frequently, introductory textbooks do little to make scholars believe comfortable with the complicated subject material. **Basic Chemistry options and workouts **brings the knowledge of John Kenkel’s greater than 35 years of training adventure to speak the basics of chemistry in a pragmatic, down-to-earth manner.

Using conversational language and logically assembled pics, the e-book concisely introduces each one subject with no overwhelming scholars with pointless aspect. instance difficulties and end-of-chapter questions emphasize repetition of recommendations, getting ready scholars to develop into adept on the fundamentals ahead of they development to a sophisticated basic chemistry path. better with visualization options akin to the 1st chapter’s *mythical microscope*, the publication clarifies demanding, summary principles and stimulates interest into what can rather be an overpowering topic.

**Topics mentioned during this reader-friendly textual content include:**

- Properties and constitution of matter
- Atoms, molecules, and compounds
- The Periodic Table
- Atomic weight, formulation weights, and moles
- Gases and solutions
- Chemical equilibrium
- Acids, bases, and pH
- Organic chemicals

The appendix comprises solutions to the homework routines so scholars can fee their paintings and obtain rapid suggestions to whether they've got appropriately grasped the strategies earlier than relocating directly to the subsequent part. Designed to assist scholars embody chemistry no longer with trepidation, yet with self assurance, this good preparatory textual content kinds an organization starting place for extra complex chemistry training.

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**Extra info for Basic Chemistry Concepts and Exercises**

**Sample text**

The question is, do I multiply 15 by 3 or divide 15 by 3 in order to calculate the number of yards? , divide 15 by 3), to some it may not be so simple. Chemistry students will encounter similar problems in which a more desirable method of making the decision of multiplying or dividing is important. For this reason, we use the concept of dimensional analysis to remove all the guesswork from this kind of problem. At the heart of the dimensional analysis method is a technique known as the cancellation of units.

2 The set-up is shown below. 382 m × = cm The required conversion factor must have cm in the numerator and m in the denominator. 7 mg represent? 7 mg × = g The required conversion has g in the numerator and mg in the denominator. 5, we find the following: 1g 1000 mg Thus, we have the answer given below. 9174 L? 4 The set-up is as follows. 9174 L × = µL The conversion factor must have µL in the numerator and L in the denominator. 5 inches? 5 Since we have not presented a conversion factor to transform inches directly to kilometers, let us first convert to meters and then to kilometers.

No similar such relationship exists within the English system because English system units were conceived in a completely arbitrary fashion. We will see examples of other metric system interdomain relationships later in this chapter. 4 Examples of Conversion Problems Examples of English–metric and metric–metric unit conversions are given below. 382 m? 2 The set-up is shown below. 382 m × = cm The required conversion factor must have cm in the numerator and m in the denominator. 7 mg represent? 7 mg × = g The required conversion has g in the numerator and mg in the denominator.