If the theoretical value for AH of the reaction HCl + NH 3 NH 4 Cl is -51.669 kJ/mol, but from your experiment, you calculated the AH of the reaction to be -43.1 /mol, what is your percent error?

The percentage error is 16.6 %.

Explanation:

To calculate the percentage error, we use the equation:

We are given:

Experimental value of ΔH = -43.1 kJ/mol

Accepted value of ΔH = -51.669 kJ/mol

Putting values in above equation, we get:

Hence, the percentage error is 16.6 %.

answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.

every chemical equation adheres to the law of conservation of mass, which states that matter cannot be created or destroyed. therefore, there must be the same number of atoms of each element on each side of a chemical equation.