1. Intro to General Chemistry

Significant Figures: In Calculations

How to Round Numbers to Significant Figures #20

Carry out the following operations and express the answers
with the appropriate number of significant numbers.
(a) 16.234 + 8.722 * 0.6746

Adding and Subtracting Significant Figures!

Carry out the following operations and express the answers
with the appropriate number of significant numbers.
(c) 12.93 * 1032 10.7322

Calculate to the correct number of significant figures. 
a. 89.3 * 77.0 * 0.08 b. (5.01 * 105) , (7.8 * 102) 
c. 4.005 * 74 * 0.007 d. 453 , 2.031

Calculate to the correct number of significant figures.
a. 89.3 * 77.0 * 0.08 b. (5.01 * 105) , (7.8 * 102)
c. 4.005 * 74 * 0.007 d. 453 , 2.031

Carry out the following operations and express the answers
with the appropriate number of significant numbers.
(a) 43.029 + 0.02348

Significant Figures Calculations Concept 3

Perform the calculation, and report the answer to the correct number of significant figures. (LO 1.16)

(a) 1.5 * 10^-4
(b) 1.55 * 10^-4 
(c) 1.547 * 10^-4
(d) 1.5473 * 10^-4

What answer should be reported, with the correct number of significant figures, for the following calculation? [(42.00 − 40.914) ⋅ (25.739 − 25.729)] / [(11.50⋅1.001) + (0.00710 ⋅ 700.)]

Significant Figures Calculations Concept 2

Calculate to the correct number of significant figures. 
a. [(1.7 * 106) , (2.63 * 105)] + 7.33 
b. (568.99 - 232.1) , 5.3 
c. (9443 + 45 - 9.9) * 8.1 * 106 
d. (3.14 * 2.4367) - 2.34

Calculate to the correct number of significant figures.
a. [(1.7 * 106) , (2.63 * 105)] + 7.33
b. (568.99 - 232.1) , 5.3
c. (9443 + 45 - 9.9) * 8.1 * 106
d. (3.14 * 2.4367) - 2.34

Add and Subtract with Significant Figures (1.6)

Express the results of the following calculations with the correct number of significant figures.
(a) ((
3.41 - 0.23)/5.233) 
* 0.205

Express the results of the following calculations with the correct number of significant figures. 
(b) 94.61 / 3.7

Express the results of the following calculations with the correct number of significant figures. 
(e) 86.3 + 1.42 - 0.09

Calculate to the correct number of significant figures.
a. 0.004 + 0.09879 b. 1239.3 + 9.73 + 3.42
c. 2.4 - 1.777 d. 532 + 7.3 - 48.523

Multiplication and Division with Significant Zeros (1.5)

Express the results of the following calculations with the correct number of significant figures.
(b) (
5.556 * 2.3)/(4.223 - 0.08)

Express the results of the following calculations with the correct number of significant figures. 
(c) 3.7 / 94.61

Express the results of the following calculations with the correct number of significant figures. 
(d) 5502.3 + 24 + 0.01

Perform the following calculation to the right number of sig figs: [(1.7 × 106) ÷ (2.63 × 105)] + 6.96

Significant Figures: Multiplication and Division!

What is the difference in mass between a nickel that weighs 4.8 g and a nickel that weighs 4.8673 g?

How to Use Significant Figures in Calculations

(a) How many significant figures should be reported for the
volume of the metal bar shown here?
<img src="https://lightcat-files.s3.amazonaws.com/problem_images/f3bfa17f85101fc8-1664217372099.jpg" alt="" />

Express the results of the following calculations with the correct number of significant figures. 
(f) 5.7 * 2.31

Significant Figures Calculations Concept 1

Carry out the following operations and express the answers 
with the appropriate number of significant numbers. 
(d) 0.06324/0.624

Rounding and Order of Operations Used in Significant Figures

Express the results of the following calculations with the correct number of significant figures. 
(a) 4.884 * 2.05

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2. Atoms & Elements

3. Chemical Reactions

4. BONUS: Lab Techniques and Procedures

5. BONUS: Mathematical Operations and Functions

6. Chemical Quantities & Aqueous Reactions

7. Gases

8. Thermochemistry

9. Quantum Mechanics

10. Periodic Properties of the Elements

11. Bonding & Molecular Structure

12. Molecular Shapes & Valence Bond Theory

13. Liquids, Solids & Intermolecular Forces

14. Solutions

15. Chemical Kinetics

16. Chemical Equilibrium

17. Acid and Base Equilibrium

18. Aqueous Equilibrium

19. Chemical Thermodynamics

20. Electrochemistry

21. Nuclear Chemistry

22. Organic Chemistry

23. Chemistry of the Nonmetals

24. Transition Metals and Coordination Compounds

[BOOK CHEM] Clutch Version

SI Units

The International System of Units (SI) is related to the metric system and is based on seven base units.

Physical & Chemical Changes

A physical change involves a change in the phases of matter, whereas a chemical change involves a change in chemical bonds.&nbsp;

Physical Properties

Physical Properties are measurable properties that describe the state of chemical compounds.&nbsp;

Significant Figures are often involved in chemical calculations.&nbsp;

Scientific Notation

Scientific Notation is used to turn small or large inconvenient numbers into manageable ones.&nbsp;

Density of Non-Geometric Objects

The density of non-geometric objects can be determined using water displacement.&nbsp;

Density

Density represents the mass of an object or compound within a given volume.&nbsp;

Significant Figures: Precision in Measurements

Significant Figures are used to discuss the level of precision in any measurement.&nbsp;

Intensive vs. Extensive Properties

Intensive Properties are independent and Extensive Properties are dependent on the size or amount of substance present

Density of Geometric Objects

The density of geometric objects generally includes spheres, cubes and cylinders.&nbsp;

Significant Figures

Significant Figures are used to determine some level of accuracy within our recorded measurements.&nbsp;

Dimensional Analysis

We use dimensional analysis&nbsp;as a fail proof process to convert from one unit to another.

Chemical Properties

Chemical Properties are observed during chemical reactions.&nbsp;

Temperature

Temperature is a measure of the amount of average kinetic energy of the atoms in a compound.

Metric Prefixes

Metric Prefixes are “labels” that can be placed in front of base units.&nbsp;

Conversion Factors

Conversion Factors represent ratios or fractions composed of different units.&nbsp;

Classification of Matter

Chemistry is the study of matter and the changes it undergoes, with the atom being its basic functional unit.&nbsp;

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