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Stoichiometry
Test Description: Stoichiometry: Mole-Mole, Mass-Mass
Instructions: Answer all questions to get your test result.
1) Ca + O2 -> 2CaO. How much calcium would be needed to make 15.0g of CaO?
A
9.7g
B
Not enough information
C
11.8g
D
10.7g
2) Mg + O2 -> MgO. How many mol of O2 are needed to produce 12 mol of magnesium oxide?
A
24mol O2
B
6mol O2
C
2mol O2
D
12mol O2
3) KClO3 -> KCl + O2. How many moles of O2 are produced from 10moles of KClO3
A
14molO2
B
10mol O2
C
6.66mol O2
D
15molO2
4) KClO3 -> KCl + O2 How many moles of KCl are produced using 3 moles of KClO3?
A
6mol KCl
B
3 mol KCl
C
1.5 mol KCl
D
2mol KCl
5) KClO3 -> KCl + O2. How many moles of KClO3 are needed to produce 50 moles of O2?
A
20mol KClO3
B
33mol KClO3
C
66mol KClO3
D
15 mol KClO3
6) CO2 + H2O -> C6H12O6 + O2. How many grams of glucose are produced when 24 mols of CO2 reacts with H2O?
A
354 grams
B
4mols
C
721 grams
D
0.00018 grams
7) Zn + HCl -> ZnCl2 + H2. What is the mass of HCl needed to react with 5.00 moles of Zn
A
365 mol Hcl
B
5 grams HCl
C
5mol HCl
D
365 g HCl
8) NaOH + H2SO4 -> Na2SO4 + H2O. How many grams of HaOH are needed to react with 50.0 grams of H2SO4?
A
0.51mol H2SO4
B
20.2 grams NaOH
C
40.8 grams NaOH
D
1.02 mol NaOH
9) NaCl + H2SO4 -> Na2SO4 + HCl. How many grams of HCl are produced when 15.0 grams of sodium chloride reacts with H2SO4?
A
9.36 g HCl
B
1.033 g HCl
C
13 g HCl
D
8.22 g HCl
10) Cu + AgNO3 -> Cu(NO3)2 + Ag. What is the mass of Cu needed to react with 12.0 g of AgNO3?
A
12.99g Cu
B
1.001g Cu
C
13.01g Cu
D
2.24g Cu
*select an answer for all questions
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