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Avogadro's Law

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by

Maya P

on 12 February 2014

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Transcript of Avogadro's Law

Gas Balloon
Answer Key
Questions
1. Name the chemical Formula of Alka-Seltzer.
Hubba Bubba
Explanation

The importance of this experiment is to show you Avogadro's Law. It states that volume and pressure contain equal amounts of molecules.
Avogadro's Law
The principle that equal volumes of all gases (given the same temperature and pressure) contain equal numbers of molecules.

Introduction
Today we're going to show you how to make a gas balloon! We're going to use Water (H20), Alka- Seltzer (NaHCO3, C6H807), three balloons and three flasks.
Ex. Lungs expand as they fill with air. Exhaling decreases the volume of lungs.
Basically when you take in oxygen chest cavity expand and when you exhale your chest cavity decreases
In this scenario the blowing of the gum creates more moles of gas. The bigger the bubble; the more gas there is!
2. Lungs ( ) as they fill with air.
Exhaling ( ) the volume of lungs.
3. Out of the three gas balloons which was bigger?
4. Was this a chemical or physical reaction?
a. NaHCO3, C9H8O4 & C6H8O7
b.)K4Fe(CN)6, ( Cu[Fe(CN)6])
For example, Coach Petree buys a pack of Hubba Bubba Gum. When he gets home he chews two pieces of gum. He increases the pressure when he blows into the gum, creating a bubble.

Demonstration
First we gathered the materials. Then we pour water in the flasks (30 ml, 60 ml, and 90ml). After that we mashed the Alka-Seltzer then put it into the balloon (different amounts). Then we cover the balloon over the flask. When the two are mixed together it creates a gas.

1) A
2) Expand, Decrease
3) The third
4) Chemical
Full transcript