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Stoichiometry Unit ReviewPowerPoint Presentation

Stoichiometry Unit Review

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How many moles of zirconium are equal to 270 grams of zirconium?

- 2.96
- 4.49
- 91.2
- 24,629
- 1.78 x 1024

0

243.52 grams of antimony is equal to _______ mole(s) of antimony or _______ atom(s) of antimony.

- 1; 6.02 x 1023
- 2; 6.02 x 1023
- 2; 1.20 x 1024
- .5; 1.20 x 1024
- 2; 2

0

What is the molar mass of sulfuric acid, H antimony or _______ atom(s) of antimony.2SO4?

- 25
- 49
- 67
- 98
- 194

13

0 antimony or _______ atom(s) of antimony.

Sodium sulfide and cadmium(II) nitrate undergo a double replacement reaction. What is the mass of cadmium sulfide that can be produced from 5.00 g of sodium sulfide? Na2S + Cd(NO3)2 2 NaNO3 + CdS

- 0.34 g
- 0.64 g
- 4.69 g
- 9.38 g
- 18.8 g

0 antimony or _______ atom(s) of antimony.

Hydrogen and nitrogen gases can be combined to form ammonia gas, NH3. How many moles of N2 are required to form 27.0 g of ammonia? 3 H2 + N2 2 NH3

- 0.79 mol
- 1.59 mol
- 3.17 mol
- 44.4 mol
- 88.8 mol

How many grams of the excess reactant will remain when 10.0 g of silicon and 100 g of oxygen react?Si + O2 → SiO2

- 0.0 g
- 21.5 g
- 64.8 g
- 88.4 g
- 166 g

0

What is the percent yield if 35 grams of SO g of silicon and 100 g of oxygen react?3 is produced from 50 grams of SO2?2SO2 + O2 → 2SO3

- 15%
- 30%
- 56%
- 80%
- 94%

30

Determine the percent yield of hydrogen if 12.5 grams of hydrogen is collected from the reaction of 500 g of zinc with 500 g of HCl.Zn(s) + 2HCl(aq) ↔ H2(g) + ZnCl2(aq)

- 14%
- 46%
- 77%
- 91%
- 110%

30

Participant Scores hydrogen is collected from the reaction of 500 g of zinc with 500 g of

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