ADVANCED HONORS CHEMISTRY - CHAPTER 3
NAME:
SCIENTIFIC MEASUREMENT
DATE:
PERCENTAGE ERROR WORKSHEET - ANSWERS - V2 PAGE:
1.
Experimental Value or Experimental Mass
1.24 g
Accepted Value or True Mass
1.30 g
*Absolute Error (See Below for Calculations)
0.06 g
**Relative Error (See Below for Calculations)
0.05
Percentage Error or Percent Error or % Error
?
% Error = (Relative Error)(100)
Relative Error =
Absolute Error
True Value
*Absolute Error = The difference between your measurement and the accepted value (truth).
Absolute Error = 1.30 g - 1.24 g
Absolute Error = 0.06 g
** Relative Error =
0.06 g
1.30 g
Relative Error = 0.05
% Error = (0.05)(100)
% Error = 5 %
1
2.
Experimental Value or Experimental Mass
1.24 x 10-2 g
Accepted Value or True Mass
9.98 x 10-3 g
*Absolute Error (See Below for Calculations)
2.42 x 10-3 g or 0.00242 g
**Relative Error (See Below for Calculations)
0.242
Percentage Error or Percent Error or % Error
?
% Error = (Relative Error)(100)
Relative Error =
Absolute Error
True Value
*Absolute Error = The difference between your measurement and the accepted value (truth).
Absolute Error = 1.24 x 10-2 g - 9.98 x 10-3 g
Absolute Error = 1.24 x 10-2 g - 0.998 x 10-2 g
Absolute Error = 2.42 x 10-3 g
or
0.00242 g
2.42 x 10−3 g
** Relative Error =
9.98 x 10−3 g
Relative Error = 0.242
% Error = (0.242)(100)
% Error = 24.2 %
2 - AHC - Chapter 3 - Percentage Error Worksheet - Answers - V2
3.
Experimental Value or Experimental Mass
252 mL
Accepted Value or True Mass
225 mL
*Absolute Error (See Below for Calculations)
27 mL
**Relative Error (See Below for Calculations)
0.12
Percentage Error or Percent Error or % Error
?
% Error = (Relative Error)(100)
Relative Error =
Absolute Error
True Value
*Absolute Error = The difference between your measurement and the accepted value (truth).
Absolute Error = 252 mL - 225 mL
Absolute Error = 27 mL
** Relative Error =
27 mL
225 mL
Relative Error = 0.12
% Error = (0.12)(100)
% Error = 12 %
3 - AHC - Chapter 3 - Percentage Error Worksheet - Answers - V2
4.
Experimental Value or Experimental Mass
22.2 L
Accepted Value or True Mass
22.4 L
*Absolute Error (See Below for Calculations)
0.2 L
**Relative Error (See Below for Calculations)
0.009
Percentage Error or Percent Error or % Error
?
% Error = (Relative Error)(100)
Relative Error =
Absolute Error
True Value
*Absolute Error = The difference between your measurement and the accepted value (truth).
Absolute Error = 22.4 L - 22.2 L
Absolute Error = 0.2 L
** Relative Error =
0.2 L
22.4 L
Relative Error = 0.009
% Error = (0.009)(100)
% Error = 0.9 %
4 - AHC - Chapter 3 - Percentage Error Worksheet - Answers - V2
5.
Experimental Value or Experimental Mass
125.2 mg
Accepted Value or True Mass
124.8 mg
*Absolute Error (See Below for Calculations)
0.4 mg
**Relative Error (See Below for Calculations)
0.003
Percentage Error or Percent Error or % Error
?
% Error = (Relative Error)(100)
Relative Error =
Absolute Error
True Value
*Absolute Error = The difference between your measurement and the accepted value (truth).
Absolute Error = 125.2 mg - 124.8 mg
Absolute Error = 0.4 mg
** Relative Error =
0.4 mg
124.8 mg
Relative Error = 0.003
% Error = (0.003)(100)
% Error = 0.3 %
5 - AHC - Chapter 3 - Percentage Error Worksheet - Answers - V2