Question

Consider the reaction between sulfuric acid and sodium hydroxide:

H₂SO₄(aq) + 2 NaOH(aq) → Na₂SO₄(aq) + 2 H₂O(l)                  ΔH_rxn = -111 kJ

125 mL of 0.400 M H₂SO₄(aq) and 125 mL of 0.400 M NaOH(aq) is mixed in a coffee cup calorimeter. Calculate q_rxn. The reaction goes to completion.  

Answer 1

As h_soy lago + 2 NG OH ay → Na2 sou Ag + 2H6w) S AHyun 11 kJ (It mean is I mol son o Hoon =-111 kJ) we have 125 m2 of 0.400.M troy = 0,05 ml we have NaOH = 0,05 ml since NaOH is limiting Reagent, 2 mol NaOH -111 kJ I no Nqon " kJ CS Scanned with 0.05 win Ngon - | x 0,05 ks - u 2 CamScanner

-— 2.225 кг в) -2 935 г. 5, 43, - 2 2 - Т Scanned with CamScanner

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