What could have accounted for a percent yield of less than 100% in this lab? check all that apply. - the copper chloride did not fully dissolve in water before performing the reaction. -the mass of the copper was not measured with the same accuracy. - not all of the copper was collected in the filter. -not enough time was allowed for all of the aluminum to react. -there were impurities in the aluminum.

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 :

we need the questions , i may then you.

i think the answer is terrae but not 100 percent sure. ▓▬▬ §