Carbonyl sulfide has the chemical formula cos. carbon has four valence electrons, and oxygen and sulfur each have six valence electrons. complete the lewis structure for this covalent compound

Answer :

Lewis-dot structure : The Lewis-dot structure shows the bonding between the atoms of a molecule and it also shows the unpaired electrons present in the molecule.

The number of valence electrons are represented by 'dot'.

The given molecule is, Carbonyl sulfide (COS)

As we know that the carbon has '4' valence electrons, oxygen and sulfur has '6' valence electron.

Therefore, the total number of valence electrons in Carbonyl sulfide, = 4 + 6 + 6 = 16

According to Lewis-dot structure, there are 8 number of bonding electrons and 8 number of non-bonding electrons.

The Lewis-dot structure of carbonyl sulfide is shown below.

The attached image should be your answer for the Lewis Structure of COS

Explanation:

1.) Convert grams of glucose to moles of glucose:25.5g gluc. * (1 mol/180g gluc.) = 1.41E-1 mol gluc.      Note. Molar mass gluc. = 180g/mol
2.) Convert grams of solvent to kilograms of solvent:398 g H2O * (1kg H2O/1000g H2O) = 0.398 kg H2O
3.) Determine molality (moles solute/kilogram solvent) of solux:1.41E-1 mol gluc./0.398 kg H2O = 3.5427E-1 mol/kg
4.) Employ Freezing Point Depression equation and determine the freezing point of the solux:
ΔT = i Kf mΔT= ? (°C)Kf = 1.86 (°C kg mol¯1)m = 3.5427E-1 (mol/kg)i = (assumed negligible)
ΔΤ = (1.86)(3.5427E-1)ΔT = 6.589Ε-1°C
5.) ΔT = 6.589Ε-1°C
25.5g gluc. * (1 mol/180g gluc.) = equal 0.14166, not 1.41E-1 mol glucose