1. Calculating Molar Mass Lesson 9

2. If this compound is made of C, H, and S, determine the molecular formula = 48.13 g/mole 0.2493 moles = 12.00 gMolar Mass CH 4 S An odiferous gaseous compound called methyl mercaptan is produced in the intestinal track of the human body and by rotting eggs or broccoli. If 12.00 g of this gas is equivalent to 0.2493 moles. Calculate the molar mass.

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

4. Another odiferous gas that is produced by the human digestive track is collected and weighed to be 0.0429 g. An equal volume of methyl mercaptan weighs 0.06051 g. Calculate the molecular mass of this gas and determine its identity. Hint: it contains sulphur. Gas X CH 4 S = 0.04290 g 0.06051g = 0.70897x 48.13 g/mole= 34.1 g/mole = H 2 S

5. Calculate the number of H atoms in C 24 H 36 N 3 O 3 if there are 864.0 C atoms. 864.0 at Cx 1 molecule 24 at C x 36 at H 1 molecule = 1296 at H