Question

In a one step reaction of neutralization of solid sodium hydroxide with and acid the enthalpy was measured as −123.95kJ/mol. Theoretical value is -98.800 KJ/mol

What is the percent error? Round your answer up to integer percents:

Answer 1

Error = |theoretical - measured|

= |-98.800 - (-123.95)|

= 25.15 KJ/mol

Now use:

% error = |Error * 100 / measured|

= 25.15 * 100 / 98.800

= 25.5 %

Answer: 25 %