The hydrogen ion concentration of the oceans is about 2xx10^(-9) M. What is the pH?
What is the pH of 0.1 M HCl ?
A 1 litre solution containing NH_(4)Cl and NH_(4)OH has hydroxide ion ion concentration of 10^-6) mol//litre. Which of the following hydroxides could be precipitated when the solution is added to 1 litre solution of 0.1 M metal ions? (I) Ba(OH)_(2)(K_(sp)=5xx10^(-3)) , (II) Ni(OH)_(2)(K_(sp)=1.6xx10^(-16)) (III) Mn(OH)_(2) (K_(sp)=2xx10^(-13)) , (IV) Fe(OH)_(2) (K_(sp)=8xx10^(-16))
What is the ph of 0.01 M HCl ?
The mass to charge ratio (m//e) for a cation is 1.5xx10^(-8) kg//C. What is the mass of this cation?
Equal volumes of hydrochlric acid and sodium hydroxide solutions of the same concentration are mixed and the pH of the resulting solution is checked with a pH paper. What would be the same colour obtained?
What is the pH of 0.1M NaOH solution?
In an electromagnetic wave,the amplitude of oscillating magnetic field is 2 xx 10^(-7) T. What is the amplitude of oscillating electric field in the wave?Given c=3 xx 10^8 m s^(-1) .
A semiconductor has equal electron and hole concentration of 6 xx 10^4m^-3 . On doping with a certain impurity electron concentration increases to 8xx10^12m^-3 . Identify the type of semiconductor?
NARENDRA AWASTHI-IONIC EEQUILIBRIUM-Assertin-Reason Type Questions
