clear
clc
// CHEMISTRY FOR ENVIRONMENTAL AND ENGINEERING SCIENCE FIFTH EDITION

disp(' Chapter 2: Basic Concepts from General Chemistry')

disp('example 2.1a') 

// To calculate the equivalent weight 
disp("What is the equivalent weight of a calcium ion")
// Let the equivalent weight be denoted by EW, formula waight be denoted by FW, and Z be denoted by the absolute value of ion charge
disp("Z=2 for calcium ion")
disp("The formula weight of calcium ion is 40 g/mol")
FW=40
Z=2
EW=FW/Z
printf("The equivalent weight of calcium ion is %.f g per equivalent",EW);
//end