University:
Everett Community College
Course:
CHEM 121 | Introduction to Chemistry
Academic year:

2011
Views:

120

Pages:

1
Author:

Scarlet Buchanan

Unit Conversions Worksheet 1 1) What are the SI units for distance, mass, and temperature? Distance is in meters, mass is in kilograms, and temperature is in degrees Celsius or in Kelvin. 2) 3) Write the definitions, symbols, and values for the following SI unit prefixes: a) kilo K one thousand or 1,000 or 103 b) centi c one hundredth or 0.01 or 10-2 c) mega M one million or 1,000,000 or 106 d) deci d one tenth or 0.1 or 10-1 e) milli m one thousandth or 0.001 or 10-3 f) micro  one millionth – usually 10-6 or 0.000 001 g) nano n one billionth – usually 10-9 or 0.000 000 001 h) pico p one trillionth – usually 10-12 or 0.000 000 000 001 How many miles are there in 3.45 x 1025 cm? 3.45 x 1025 cm x 4) 1 in x 1 ft x 1 mi = 2.14 x 1020 mi 2.54 cm 1 in 5280 ft How many meters are there in 89 inches? (2.54 centimeters = 1 inch). 89 in x 2.54 cm x 10-2 m = 2.3 m 1 in 1 cm 5) How many feet are there in 75 meters? 75 m x 1 cm x 1 in x 1 ft = 250 ft 10-2 m 2.54 cm 12 in 6) What temperature is 6900 C in Kelvin? 690 + 273 = 963 K