Answer:
- The percent error, % error, is 2.1% (option f)
Explanation:
1) Data:
a) Experimental value, m₁ = 105.2 amu
b) Known value, m = 107.5 amu
b) % error = ?
2) Formulae:
a) absolute error = | experimental value - known value|
b) % error = [ absolute value / known value ] × 100
3) Solution:
a) absolute error = | m₁ - m | = | 105.2 amu - 107.5 amu | = 2.3 amu
b) % error = [ 2.3 amu / 107.5 amu ] × 100 = 2.1% ← answer
