How do you write ionic equations and how do you form them?

Given:

Experimental density of Al = 2.54 g/cm³

Actual density of Al = 2.7 g/cm³

To determine:

Percentage error in density calculation

Explanation:

% error = |Experimental value - Actual value/Actual value| * 100

% error = |2.54-2.7/2.7| * 100 = 5.92%

Ans: The percent error in density calculation is 5.92%. When rounded to the nearest whole number, 6.0%