-51.O KJ mol-
+57.3 KJ mol-
+57.O KJ mol-
+51.0 KJ mol-
Correct answer is A
NH4OH = 20cm of 0.1 m
NH4 + HCl → NH4Cl = H2O
Heat of Neutralization of NH4OH
= \(\frac{-102}{2}\) = -51.0 KJ mole-1
Which of these represents a redox reaction?
AgNO3 + NaCl → AgCAl + NaNO3
H2S + Pb(NO3) → PbS + 2HNO3
CaCO3 → CaO + CO2
Zn + 2HCl → ZnCl2 + H2
Correct answer is D
No explanation has been provided for this answer.
3.90 x 102 coulombs
5.50 x 103 coulombs
6.54 x 103 coulombs
2.34 x 104 coulombs
Correct answer is D
No explanation has been provided for this answer.
Which of the following solutions will conduct the least amount of electricity?
2.00 M aqueous solution of NaOH
0.01 M aqueous solution of NaOH
0.01 M aqueous solution of hexanoic acid
0.01 M aqueous solution of sugar
Correct answer is D
No explanation has been provided for this answer.
Which of the following is an acidic salt?
NaHSO4
Na2SO4
CH3CO2Na
Na2S
Correct answer is A
A salt formed by the neutralisation of a strong acid and weak base is called acidic salt because its aqueous solution turns blue litmus red.