Molar mass of CHCl3 is
sum of atomic mass of all the atoms in it.
= C + H + 3 Cl
= 12.0107 + 1.008 + 3 (35.453) = 2.0107 + 1.008 + 106.359
= 119.38 g/mol
Molar mass of CHCl3 is 119.38 g/mol
Moles=mass/molar mass of water. the molar mass of water is found to be 18g which is calculated adding the molar mass of hydrogen plus that of oxygen that is(2x 16)+(1 x2)=18g/mol
convert Kg to grams that is 1.8kg x 1000=1800g
moles is therefore 1800g /18g/mol=100 mol
The energy of a photon : 7.645 x 10⁻³⁴ J
<h3>Further explanation
</h3>
Radiation energy is absorbed by photons
The energy in one photon can be formulated as

Where
h = Planck's constant (6,626.10⁻³⁴ Js)
f = Frequency of electromagnetic waves
f = c / λ
, Hz
c = speed of light
= 3.10⁸ m/s
λ = wavelength
,m
wavelength λ of 2.60 ✕ 10⁻⁸ m
The energy :

The mass is 224 grams of NaOH