Chem 115 SI 1/31 - Scientific Notation & Significant Figures

1's and 0's

100

How many significant figures are in 100?

1 SF

200

How many significant figures are in 100.?

3 SF

300

Express 0.0001 in scientific notation.

1 x 10-4

400

Express 1001.10 in scientific notation to 3 significant figures.

1.00 x 10³

500

Express 1010101010101010101 in scientific notation, then identify the number of significant figures.

1.010101010101010101 x 10¹⁸ ; 19 SF

Oops, all 4's!

100

How many significant figures are in 444.4?

4 SF

200

Express 44 in scientific notation.

4.4 x 10¹

300

How many significant figures are in .4444?

4 SF

400

Express 44444 in scientific notation to 4 significant figures.

4.444 x 10⁴

500

What is 444 x 44? Write your answer in scientific notation to 4 significant figures.

1.954 x 10⁴

Plain Bagels

100

How many significant figures are in 5?

1 SF

200

How many significant figures are in 0.037?

2 SF

300

Express 2.07 x 10² in scientific notation.

It's already in scientific notation!

400

Express 123456789 in scientific notation to 5 significant figures.

1.2346 x 10⁸

500

Identify the number of significant figures in 129.00001290, then express it in scientific notation.

11 SF, 1.290000129 x 10²

Double Whammies

100

Calculate the following and report your answer in scientific notation:

2 x 342

6.84 x 10²

200

Calculate the following and report your answer in scientific notation:

4.7/1000

4.7 x 10^-3

300

Calculate the following and report your answer in scientific notation to 3 significant figures:

(1.23 + 45.6)/789

5.94 x 10^-2

400

Calculate the following and report your answer in scientific notation with correct significant figures:

(35.784/8.52)-0.963

3.2 x 10⁰

500

Calculate the following and report your answer in scientific notation with correct significant figures:

[(1.92 x 10⁵) x ((3.52 x 10^-2) + 18.09)] / [64.2-59.90000]

8.09 x 10⁵

Chef It Up!

100

On the whiteboard, write a number with 3 significant figures.

Ex) 467

200

On the whiteboard, write an ambiguous number with 4 significant figures.

Ex) 1,252,000

300

On the whiteboard, multiply a 2 SF number with a 3 SF number. Write the answer in scientific notation. How many significant figures are present in the answer?

Ex) 12 x 0.456 = 5.5 x 10⁰, 2 SF

400

Give a high five to someone near you for every significant figure that is in 1.00078

I better have heard 6 high fives...

500

On the whiteboard, convert 33.7 ft to meters. Show dimensional analysis, and report your answer in scientific notation to 3 significant figures.

(33.7 ft) x (12 in/1 ft) x (2.54 cm/1 in) x (10^-2 m/1 cm) = 1.03 x 10¹ m