1. Calculating Molar Mass Lesson 9

2. An odiferous gaseous compound called methyl mercaptan is produced in the intestinal track of the human body and by rotting eggs or broccoli. If g of this gas is equivalent to moles. Calculate the molar mass.
Molar Mass
= g
= g/mole
moles
If this compound is made of C, H, and S, determine the molecular formula
CH4S

3. Draw the structural diagram for this compound
Draw the electron-dot diagram for this compound H C S ..
: : :

4. Another odiferous gas that is produced by the human digestive track is collected and weighed to be g. An equal volume of methyl mercaptan weighs g. Calculate the molecular mass of this gas and determine its identity. Hint: it contains sulphur.
Gas X
= g =
x g/mole
= g/mole
CH4S g
= H2S

5. Calculate the number of H atoms in C24H36N3O3 if there are 864
Calculate the number of H atoms in C24H36N3O3 if there are C atoms.
864.0 at C
x 1 molecule
x at H
= at H
24 at C
1 molecule