Question

What is true about the following reaction at 25°C?<br /> HBrO(aq) + NaCl(aq) = NaBrO(aq) + HCl(aq) OK> 1 hence there will be mostly products at equilibrium. OK> 1 hence there will be mostly reactants at equilibrium. OK< 1 hence there will be mostly products at equilibrium. OK< 1 hence there will be mostly reactants at equilibrium.

Answer 1

HBrO(aq) + NaCl(aq) ----------> NaBrO(aq) + HCl(aq)
HBrO is weak acid . It is partialy ionizable.
K>1 hace there will be mostly reactants at equilibrium>>>>answer
Q8.
LiBr(s) -------> Li^+(aq) + Br^-(aq)
KNO3(s) --------> K^+ (aq) + NO3^- (aq)
only i would be more soluble in an acidic solution >>>>>answer
Q9.
Ni(OH)2(s) ---------> Ni^2+(aq) + 2OH^_(aq)
----------------------x ---------- 2x
Ksp = [Ni^2+][OH^-]^2
6*10^-16 = x*(2x)^2
4x^3 = 6*10^-16
x = 5.3*10^-6
[OH^-] = 2x = 2*5.3*10^-6   = 1.06*10^-5
POH = -log[OH^-]
     = -log(1.06*10^-5)
     = 4.975
PH = 14-POH
    = 14-4.975
     = 9.0
9.0 >>>answer