B. Example Calculations
1) The temperature of the oven is 178.0 degrees C. What is the temperature in K?
K=27.3+C+.15
K=27.3+178.0 degrees C
K=451.2K
2) Complete the following problems with proper significant figures(10.321-1.20)/31.9=
9.121/31.9
=2.86*10^-1
3) What is the correct answer for this problem? (hint remember significant figure and rounding rules ) 180.9479-262.0=
=-81.1
4)The element bromine at room temperature is a liquid with a density of 3.12 g/ml. What is the mass of 125mL of bromine?
D=m/v
(3.12g/mL)=m/125mL
=390. g
5) What is the correct answer for this problem?(hint remember significant figure, scientific notation and rounding rules ) 0.25 + 5.3=??
0.25+5.3=5.55
=5.6x10^0
6) How many cHz are in 12.21kHz?
1kHz=1000Hz
10Hz=1x10^-2Hz
12.21kHz*1000Hz/1kHz*1cHz/1x10^-2
K=27.3+C+.15
K=27.3+178.0 degrees C
K=451.2K
2) Complete the following problems with proper significant figures(10.321-1.20)/31.9=
9.121/31.9
=2.86*10^-1
3) What is the correct answer for this problem? (hint remember significant figure and rounding rules ) 180.9479-262.0=
=-81.1
4)The element bromine at room temperature is a liquid with a density of 3.12 g/ml. What is the mass of 125mL of bromine?
D=m/v
(3.12g/mL)=m/125mL
=390. g
5) What is the correct answer for this problem?(hint remember significant figure, scientific notation and rounding rules ) 0.25 + 5.3=??
0.25+5.3=5.55
=5.6x10^0
6) How many cHz are in 12.21kHz?
1kHz=1000Hz
10Hz=1x10^-2Hz
12.21kHz*1000Hz/1kHz*1cHz/1x10^-2