Answer:
1.0 × 10⁻⁹ M.
Explanation:
<em>∵ [H₃O⁺][OH⁻] = 10⁻¹⁴.</em>
[H₃O⁺] = 1.0 x 10⁻⁵ M.
<em>∴ [OH⁻] = 10⁻¹⁴/[H₃O⁺]</em> = 10⁻¹⁴/(1.0 x 10⁻⁵ M) = <em>1.0 × 10⁻⁹ M.</em>
Answer: The molar mass of the given compound is ![1.11\times 10^2 g/mol](https://tex.z-dn.net/?f=1.11%5Ctimes%2010%5E2%20g%2Fmol)
Explanation:
In molecular formula of
there are two chlorine atoms and one calcium atom.
The atomic mass of the calcium = 40.07 g/mol
The atomic mass of chlorine = 35.5 g/mol
Molar mass of the guven compound is :
![40.07 g/mol + 2\times 35.5 g/mol=111.07 g/mol\approx 1.11\times 10^2 g/mol](https://tex.z-dn.net/?f=40.07%20g%2Fmol%20%2B%202%5Ctimes%2035.5%20g%2Fmol%3D111.07%20g%2Fmol%5Capprox%201.11%5Ctimes%2010%5E2%20g%2Fmol)
The molar mass of the given compound is ![1.11\times 10^2 g/mol](https://tex.z-dn.net/?f=1.11%5Ctimes%2010%5E2%20g%2Fmol)
Nearer to the chlorine as it has a greater electronegativity