M REV CH11 & GAS STOCHIOMETRY LAB Name_______________________
LOOK UP 1-5 IN THE TEXT IN CH 10 & 11
1. Gay-Lussac said gases react in _____________ ratios.
2. Avogadro said equal volumes of gases (at the same conditions) contain equal numbers of ________________
3. Standard molar volume is ______ L at _________.
4. The ideal gas equation is __________________. R represents ___________
5. What is the difference between effusion and diffusion? ______________________________________________________________
6. The mass of a mole can be found on the _____________________; one mole of carbon monoxide weighs ______________ g
7. The number of molecules in a mole is called avogadro’s number it is __________
8. Which will diffuse faster at the same temperature, carbon monoxide or oxygen gas? ________________ Why? _________________________________
REVIEW THE LAB, THEN ANSWER:
9. The balanced equation for the reaction in the film canister( include states) __________________________________________
10. In the film canister, the limiting reactant was _______________ and _______________ was the _______________________ reactant because_____________________________
11. The most reactive metal was _______________ because ____________________
12. The pressure today is ________________(include label)
13. When hydrogen burns, _________________ is produced
14. When the hydrogen burns, ___________ is the excess reactant.
15. ______________ began to crush the bottle, because ______________ was ________________ vapor was condensing inside, causing a ___________
16. Very little of the penny is __________________
17. One penny can make about ________ L of hydrogen gas.
Butane Lab:
Data – mass of lighter before 25.48g; after 25.27g; temp 19C, pressure 754torr, vol 85mL
1. find the moles of butane (C4H10) using IGL
2. find moles of butane using mass and molar mass
3. list some properties of butane
4. define volatile; give an example of something volatile & something nonvolatile
5. how can graduated cylinders be kept from breaking?
6. explain why butane is liquid inside, but gas outside the lighter
7. describe the boiling pt and density of butane
50 L of gas at 50 degrees C and 5 atm is changed to 10 degrees C and 1atm. What is the new volume? Show formula , work, answer with label.
On the back of this paper draw three balloons. In one balloon put 5 moles of carbon monoxide gas, in another, 1/3 mole of P2O5 gas, and in a third 1 mole of dinitrogen monoxide gas. Label each balloon with 4 things 1. Moles (given), 2. volume of balloonin L(at STP), 3.Number of molecules, and 4. Mass of gas in th