Part C Compare the mass of the zinc strip from test tube 5 with the mass of the same strip measured in task 1, part A. Based on
your observations of the metal strip, explain what factors may have added to its mass or caused a decrease in its mass.
Which had the greater effect? Explain your reasoning.

*tilts head* sounds more like a statement

answer: the value of enthalpy change will be -152.80 kj.

solution:

pressure = 1atm , temperature = = 298 k

given that pressure and temperature are same in both gases , the number of moles of both gases can be determined by the ideal gas equation.

according to reaction 3 moles no are reacting with 1 mol of ,then 0.49 mol of no will react with moles of ozone that is 0.16 moles of ozone. since, no is limiting reagent and is an excessive reagent.

enthalpy change for the reaction between the given volumes of the gases is :