The enthalpy change for the following reaction NaOH(aq) + HCl(aq) → NaCl(aq) + H2O(l) is -57 kJ. Predict the value of the enthalpy change in the following reaction. Ba(OH)2 + H2SO4(aq) → BaSO4(s) + 2H2O(l)

Question

The enthalpy change for the following reaction NaOH(aq) + HCl(aq) → NaCl(aq) + H2O(l) is -57 kJ. Predict the value of the enthalpy change in the following reaction. Ba(OH)2 + H2SO4(aq) → BaSO4(s) + 2H2O(l) (A) -57 kJ (B) -76 kJ (C) -114 kJ (D) -228 kJ

Tardigrade Admin · Accepted Answer

Ba(OH)2+H2SO4(aq) arrow BaSO4(s)+2H2O(l) In this reaction, neutralisation of dibasic acid by Ba(OH) 2 base is happening. So neutralisation reactions involving two protons should be about double as that of neutralisation reactions involving one proton.

Q. The enthalpy change for the following reaction
$N a O H_{(a q)} + H C l_{(a q)} \to N a C l_{(a q)} + H_{2} O_{(l)}$ is -57 kJ.
Predict the value of the enthalpy change in the following reaction.
$B a (O H)_{2} + H_{2} S O_{4 (a q)} \to B a S O_{4 (s)} + 2 H_{2} O_{(l)}$

-57 kJ

-76 kJ

-114 kJ

-228 kJ

$B a (O H)_{2} + H_{2} S O_{4 (a q)} \to B a S O_{4 (s)} + 2 H_{2} O_{(l)}$
In this reaction, neutralisation of dibasic acid by Ba(OH) 2 base is happening. So neutralisation reactions involving two protons should be about double as that of neutralisation reactions involving one proton.

Q. The enthalpy change for the following reaction NaOH(aq)​+HCl(aq)​→NaCl(aq)​+H2​O(l)​ is -57 kJ. Predict the value of the enthalpy change in the following reaction. Ba(OH)2​+H2​SO4(aq)​→BaSO4(s)​+2H2​O(l)​