Wellnertal Equallons
Instruction Active
Calculating Enthalpy of Reaction
Ammonia (NH3(g). AH = -46.19 kJ/mol) reacts with hydrogen chloride (HCI(9), AH = -92.30 kJ/mol) to
form ammonium chloride (NHCl(s). AH = -314.4 kJ/mol) according to this equation:
NH3(9) + HCl(9) ► NH4Cl(s)
What is AHan for this reaction?
DONE

Naoki's bicycle has a mass of 10 kg. if naoki sits on her bicycle and starts pedaling with a force of 168 n, causing an acceleration of 2.8 m/s2, what is naoki's mass?

Chemical kinetics what was the rate of reaction in trial 3? choose the closest answer.

Calculate the ratio of h+ ions to oh– ions at a ph = 7. find the concentration of h+ ions to oh– ions listed in table b of your student guide. then divide the h+ concentration by the oh– concentration. record this calculated ratio in table a of your student guide. compare your approximated and calculated ratios of h+ ions to oh– ions at a ph = 7. are they the same? why or why not? record your comparison in table a. what is the concentration of h+ ions at a ph = 7? mol/l what is the concentration of oh– ions at a ph = 7? mol/l what is the ratio of h+ ions to oh– ions at a ph = 7? : 1