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 You can only work with your partner  All your work must be shown on the white board  First team gets 3 points  Second team gets 2 points  Third.

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Presentation on theme: " You can only work with your partner  All your work must be shown on the white board  First team gets 3 points  Second team gets 2 points  Third."— Presentation transcript:

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2  You can only work with your partner  All your work must be shown on the white board  First team gets 3 points  Second team gets 2 points  Third team gets 1 point Team with the highest score gets bubble gum!

3 Determine the molar mass for the following: CH 3

4 Determine the molar mass for the following: Pb(NO 3 ) 2

5 Calculate the number of moles of 26.2 g of gold.

6 Calculate the number of moles of 41.5 g of calcium.

7  Calculate the mass of 3 moles of Fe?

8  Calculate the number of grams of 7.5mol of Pb.

9  What is the volume of 3 moles of Cl 2 ?

10  How many moles of 42L of CH 4 ?

11  How many molecules are in 5.3 moles of H 2 C 2 O 4 ?

12  How many moles is 7.8x10 23 atoms of Cu?

13  Calculate the percent composition of copper in CuBr 2

14  Calculate the percent composition of carbon in C 6 H 10 O 6

15  Determine the empirical formula of a compound that has the following percent compositions: Na 83.12%, N 16.88%

16  Determine the empirical formula of a compound that has the following percent compositions: % Pt, 2.02% H, 9.34% N, 23.63% Cl.

17  How many grams CHCl 3 is will be produced from 50.0 g CH 4 ? CH Cl 2  CHCl HCl  What will the percent yield be if the actual yield is 400g?

18  What mass in grams of sodium carbonate, Na 2 CO 3 is produced if 50.0 g of sodium oxide, Na 2 O, are reacted with excess carbon monoxide, CO, according to the fol­lowing chemical equation? 2Na 2 O (s) + CO (g)  Na 2 CO 3(s) + 2 Na (s)

19  The reaction between solid sodium and iron III oxide is one in a series of reactions that inflates an automobile airbag. Na + Fe 2 O 3 → Na 2 O + Fe  If g Na and 100 g of Fe 2 O 3 are used in this reaction determine the limiting reactant and the mass of iron produced.


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