{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

exam1chem30a

# exam1chem30a - Exam#1 Chem 30A Spring 2000 Name On all...

This preview shows pages 1–2. Sign up to view the full content.

Chem 30A Name_______________________ Spring 2000 On all problems, show work for full credit. 1. (8 pts) Convert the following measurements to three significant figures and express the number in the proper scientific notation format. a. 100,900 cm 1.01 x 10 5 d. 209.98 x 10 -7 g ___ 2.10 x 10 -5 ______ b. 0.0007789 cm ______ 7.79 x 10 -4 ___ e. 8 L ___________ 8.00 _________ 2. (8 pts) If a bullet is traveling 897 miles per hour, how fast is it traveling in meters per minute? Use the conversion factors provided below and express the answer in the proper scientific notation format. 2.54 cm = 1in 1 m = 39.4 in 5,280 feet = 1 mile 12 inches = 1 foot 60 min = 1 hour 2.40 x 10 4 m/min 3. (8 pts) Write the number of significant figures in the following measurements. a. 01.010 x 10 -8 hm ____ 4 ________ c. 1,000,600 cm ______ 5 ________ b. 0.05700 m ________ 4 __________ d. 20.000 m __________ 5 _______ 4. (8 pts) Execute the following calculations keeping in mind significant figures. a. 7228.00 cm + 200 cm =

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### Page1 / 4

exam1chem30a - Exam#1 Chem 30A Spring 2000 Name On all...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online