Read the paper more carefully if you don't understand it
L
mol/dm³ is measure for molarity
The alkaline earth metals (the second group) because their ion charge is +2
The more protons you add, the more positively charged the atom becomes
the charge of an atom determines what kind of an atom it is <span />
The answer
first of all, we should know that NaOH is a strong base. For such a product, the conentration of the OH - is equivalent to the concentration of the NaOH itself.
that means:
[ OH -] = [ NaOH] =<span>0.001 62
and for a strong basis, pH can be calculated as pH = 14 + log </span>[ OH -]
first we compute log [ OH -] :
log [ OH -] = log (0.001 62)= -2.79
finally pH = 14 -2.79 = 11.20