Advanced Unit 1 Test

Scientific Notation

100

Convert the following number to scientific notation:

10300

1.03 x 10⁴

200

Convert the following number to scientific notation:

0.000134

1.34 x 10^-4

300

Convert the following number to scientific notation:

1234500.

1.234500 x 10⁶

400

Convert the following number in scientific notation to the number:

1.360 x 10³

1360.

500

Convert the following number in scientific notation to the number:

5.6700 x 10²

567.00

Unit Conversions

100

Convert the following measurement to the given units (in correct sigfigs):

10.0 km --> m

1.00 x 10³ m

200

Convert the following measurement to the given units (in correct sigfigs):

5.00 days --> s

432000 s

300

Convert the following measurement to the given units (in correct sigfigs):

1.57 gal/min --> q/s

0.105 q/s

400

Convert the following measurement to the given units (3 sigfigs):

5.90 mi/hr --> m/s

2.64 m/s

500

Convert the following measurement to the given units (3 sigfigs):

450. torr/yr --> Pa/s

0.00190 Pa/s

Yield to the Error

100

You expected that you would have 4.00 g of salt at the end of an experiment, but you ended up with 4.50 grams. What could have caused this?

Contamination

200

You expected that you would have 10.00 grams of glucose at the end of an experiment, but you ended up with 10.10 grams. What is your percent yield in the correct number of sigfigs?

101.0 % yield

300

You expected that you would have 60.00 grams of aluminum chloride at the end of an experiment, but you actually measured 66.00 grams. What is the percent error using the correct number of sigfigs?

10.0 % error

400

You expected that you would have 5.00 g of sodium nitrate at the end of your experiment, but you ended up with 4.50 g. What is your percent error in the correct number of sigfigs?

10. % error

500

You expected that you would obtain 55.00 grams of calcium carbonate at the end of an experiment, but you measured more at the end with a 4.00% error. What was the amount measured using the correct number of sigfigs?

57.20 grams

Welcome to the Lab

100

What PPE should be used during labs?

gloves AND goggles

200

A chemical splashes into your eye! What do you do?

Rinse your eye out at the eyewash station. (Also, a partner should tell the instructor)

300

What piece of equipment is used to measure small amounts of liquid precisely?

Graduated cylinder

400

A fire drill begins. We are conducting a flame test. What do we need to do before we exit the room?

Press the emergency gas shut-off button.

500

When should you take your gloves off during a lab?

After the table is cleaned off at the end.

How Many?

100

How many significant figures does the following number have?

800

1

200

How many significant figures does the following number have?

1.57 x 10²³

3

300

How many significant figures does the following number have?

101.5670

7

400

How many significant figures does the following number have?

50.

2

500

How many significant figures does the following number have?

0.0078000

5