Problem Set 1 - Chem 215, Fall 2007 Problem Set 1 Due Fri....

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Chem 215, Fall 2007 Problem Set 1 Due Fri. Aug. 31, 2:00 PM Name: ____________________________ Lab TA Name: ______________________ Lab Day: __________ 1. When aluminum is ignited in bromine, aluminum bromide is formed. In a certain experiment, 6.0 g of aluminum reacted with an excess of bromine to yield 50.3 g of aluminum bromide. Calculate the theoretical and percent yield of aluminum bromide. 2. Consider a 5.430 gram mixture of FeO and Fe 3 O 4 . This mixture reacts completely with an excess of oxygen to form 5.779 g of Fe 2 O 3 . Calculate the percent by mass FeO in the original mixture.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
2 3. The total mass that can be lifted by a balloon is given by the difference between the mass of air displaced by the balloon and the mass of gas inside the balloon. Consider a hot-air balloon that approximates a sphere 5.00 meters in diameter, and contains air heated to 65 o C. The surrounding air temperature is 21 o C. The pressure in the balloon is equal to the atmospheric pressure, 745 Torr. a)
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/16/2009 for the course CHEM 2150 taught by Professor Chirik,p during the Fall '08 term at Cornell University (Engineering School).

Page1 / 6

Problem Set 1 - Chem 215, Fall 2007 Problem Set 1 Due Fri....

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online