The Mole Study Questions

1.         What did Guy-Lussac discover about gases?

2.         What were Avogadro’s 2 major contributions to chemistry?

3.         State Avogadro’s Law

4.         What were Canizzaro’s 2 major contributions to chemistry?

5.         What is the unit for mass used on the periodic table?

6.         How does molecular mass differ from molar mass?

7.         Convert 200g of FeO to moles.

8.         Convert 3 mol of CO₂ to grams.

9.         What is a conversion factor?

10.       If 25g of a substance equals 1 mole, what conversion factor would you use to convert 1.5mol to grams?

11.       What conversion factor would be used to convert 3 mol of the substance in question 10 to grams?

12.       What is the main reason scientific notation is used?

13.       Express 123587630000000 in scientific notation with 3 significant figures.

14.       What is the unit used for molecular and formula mass?

15.       What is the unit of molar mass?

16.       Define molarity.

17.       You have 255 g of glucose (C₆H₁₂O₆) dissolved in 2L of water. What is the molarity of this solution?

18.       The oxidation of 50.0g of Mn produces 79.1 g of an oxide. Calculate (a) the percent composition, and (b) the empirical formula of this oxide.

19.       What two things are conserved in a chemical reaction?

20.       Why aren’t moles conserved in a chemical reaction?

For the next 4 questions balance the equation and calculate the indicated quantity.

21.       K_(s) + H₂O _(g) –> KOH_(aq) + H_2(g) How much KOH will be produced from 100g of K?

22.       Fe₂O_3(s) + C –> Fe_(l) + CO_(g) How much CO will be produced from 100g of C?

23.       CaC_2(s) + H₂O_(l) –> Ca(OH)_2(s) + C_sH_2(g) How much CaC₂ is required to produce 100g of C₂H₂?

24.       C₄H_10(g) + O₂ –> CO_2(g) + H₂O_(l) How much H₂O can be produced using 100g O₂?

25.       What is a mole?

26.       How many particles are there in a mole?