POH of a 0.0072 M=-lg(0.0072) = 2.1426675
Answer:
The First Battle of Panipat was fought between the invading forces of Babur and the Lodi Empire, which took place on 21 April 1526 in North India. It marked the beginning of the Mughal Empire. This was one of the earliest battles involving gunpowderfirearms and field artillery.
Answer:
The word radon is derived from radium, of which radon is gas. Early in its discovery it was also called radium emanation and niton, which comes from the Latin nitens, Since 1923, however, it has been called radon.
The 3rd option
because i’m always right:)
PH = -log [H+]
pH = -log (1.0x10^-4) = -(-4) = 4 or A
