Chem lab #4 - Stoichiometry and the Ideal Gas Law By Yiliu...

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

View Full Document Right Arrow Icon
Stoichiometry and the Ideal Gas Law By Yiliu (Peter) Wang Teaching Assistant: Josie Bodle October 19 th , 2007
Background image of page 1

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

View Full DocumentRight Arrow Icon
Results and Discussion: An nitrate salt of the formula MNO 2 , where M + is an alkali metal cation (Li + , Na + , K + , Rb + ) was reacted with sulfamic acid, HSO 3 NH 2 . Using the volume of the gas, the temperature of the gas, the pressure of the gas, we can figure out the moles of Nitrogen gas present using the ideal gas law. Then using the stoichiometric relationship between the moles of Nitrogen gas and the nitrate salt, we are able to figure out the identity of the alkali metal cation. Overall equation: MNO 2 (aq) + HSO 3 NH 2 (aq) -> MHSO 4 (aq) + H 2 O (l) + N 2 (g) 1. The mass of the solid MNO 2 crystals was measured before it was mixed in with water. The mass of the test-tube was measured to be 3.536 grams, and the mass of the test-tube and the nitrate salt sample was measured to be 4.305 grams. 4.305 grams – 3.546 grams = .759 grams 2. Then mixed in MNO 2 crystals with water (3 mLs) and then mixed it in with sulfamic acid, and the products are as shown in the overall reaction. Observation: nitrogen gas fizzed out constantly, fast at the beginning and then
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 lab report was uploaded on 02/01/2008 for the course CHEM 2070 taught by Professor Chirik,p during the Fall '05 term at Cornell University (Engineering School).

Page1 / 4

Chem lab #4 - Stoichiometry and the Ideal Gas Law By Yiliu...

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