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## CHM1045, Math Review for the course

by: Ashton Waller

21

0

7

# CHM1045, Math Review for the course CHM1045

Marketplace > Florida State University > Chemistry > CHM1045 > CHM1045 Math Review for the course
Ashton Waller
FSU

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These notes cover all of the algebra, physics, and conversions you need to know for the entire course.
COURSE
Gen Chemistry 1
PROF.
Dr. Naresh Dalal
TYPE
Bundle
PAGES
7
WORDS
CONCEPTS
Math, Physics, Chemistry, conversions
KARMA
75 ?

## Popular in Chemistry

This 7 page Bundle was uploaded by Ashton Waller on Thursday September 22, 2016. The Bundle belongs to CHM1045 at Florida State University taught by Dr. Naresh Dalal in Fall 2016. Since its upload, it has received 21 views. For similar materials see Gen Chemistry 1 in Chemistry at Florida State University.

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Date Created: 09/22/16
General Chemistry 1 Math Review International System of Units (SI) 3 Volume – SI derived unit for volume is cubic meter (m ) Density – SI derived unit for density is kg/m 3 Density Example 1: Gold is a precious metal that is chemically unreactive. It is used mainly in jewelry, dentistry, and electronic devices. A piece of gold ingot with a mass of 301 g has a volume of 15.6 cm . Calculate the density of gold. Solution We are given the mass and volume and asked to calculate the density. Therefore, from Equation (1.1), we write Scientific Notation Significant Figures Sig Fig Examples: Carry out the following arithmetic operations to the correct number of significant figures: (a)11,254.1 g + 0.1983 g (b)66.59 L − 3.113 L (c)8.16 m × 5.1355 (d) 0.0154 kg  88.3 mL (e) 2.64 × 10 cm + 3.27 × 10 cm 2 Solutions: In addition and subtraction, the number of decimal places in the answer is determined by the number having the lowest number of decimal places. In multiplication and division, the significant number of the answer is determined by the number having the smallest number of significant figures. a) b) 8) d) e) First we change 3.27 × 10 cm to 0.327 × 10 cm and then carry out the addition (2.64 cm + 0.327 cm) × 10 . Following the procedure in (a), we find 3 the answer is 2.97 × 10 cm. Dimensional Analysis Method of Solving Problems Example: An average adult has 5.2 L of blood. What is the volume of blood in m ? Strategy The problem can be stated as 3 ? m = 5.2 L How many conversion factors are needed for this problem? 3 −2 Recall that 1 L = 1000 cm and 1 cm = 1 × 10 m.

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