Chemistry questions. Help anyone?

moochiemoo

New member
1. If 5.00 g of an unknown metal oxide (MO) reacted with excess carbon and formed 0.738 L of CO2 at 200 degrees C and 0.978 atm, what is the identity of the metal? The equation:
2MO + C = 2M + CO2

2. A gaseous sulfur compound causes the pungent aroma of rotten eggs. If 1.60 g of gas collected in a 1.00 L vessel at 1065 torr and
89 degrees C, what would be the molar mass of the trapped gas?

3. An electronic vacuum tube was sealed off during manufacture at a pressure of 1.8x10-5 torr at 27 degrees C. Its volume is 100 cm3. Compute the number of molecules remaining in the tube.
 
Back
Top