Pre lab
Data Collection
Avogadro’s Law Lab Sheet
Write the chemical formulas for:
a.sodium bicarbonate – NaHCO3
b.acetic acid – CH3COOH
c.sodium acetate – C2H3NaO2
d.water – H2O
e.carbon dioxide -CO2
1.How many atoms are there in 1 mole of magnesium?
6.02 x 10^23
2.What is 1 item in your house that contains sodium bicarbonate? acetic acid?
Baking soda
Vinegar
1.Complete the data table making observations for each substance. You should use the
pictures for the observations.
Data Table 1
Amount of Observations
sodium
bicarbonate
used.
1There was a reaction between the two
2There was a little fizzing in the reaction
3The reaction went up around halfway up the beaker
3.
Analysis and Conclusions
4.
5. Using the equation moles = mass (g) /molar mass find the moles of sodium
carbonate. Remember, you used 5 grams!
.01
2.What differences where seen with different amounts of reactants?
The more substances, the bigger the reaction was.
3.State and explain the relationship between the amount of reactants used and the
volume of gas in the balloon.
The reaction was moved higher, but the volume of the gas was the same.
Imagine you only have 100 mL of acetic acid. How could you determine how much
baking soda to add to get the largest amount of gas possible?
You test it in small amounts first
6.At standard temperature and pressure 1 mole of any gas has a volume of 22.4 liters
of gas. If the 5 grams of baking soda reacted at standard temperature and pressure,
what volume of gas would be produced?
The reaction would be big.
