Answer: Option (a) is the correct answer.
Explanation:
A lithium atom has atomic number 3 and its electronic distribution is 2, 1. Therefore, it easily loses one electron and results in the formation of which is known as lithium ion.
Whereas a nitrate ion has a chemical formula as .
Since, charge on both lithium and nitrate ion is same in number. Therefore, when both these ions combine together then it results in the formation of compound.
Name of this compound is lithium nitrate.
Thus, we can conclude that when a lithium ion and nitrate ion combine, the result is .
Answer:
pH = 2,4
Explanation:
pH is defined as a measure of acidity or alkalinity of a solution based on H⁺ concentration
The HCl dissociates in water thus:
HCl → H⁺ + Cl⁻
That means that moles of HCl are the same than H⁺.
0,35gHCl = 9,6x10⁻³ moles HCl ≡ moles H⁺
H⁺ molarity is: = 3,84x10⁻³M
As pH = -log [H⁺]
<em>pH = 2,4</em>
I hope it helps!