Ultimate Quiz On Stoichiometry Quiz
5 Questions
| Total Attempts: 3335
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Questions and Answers
- 1.Mole ratios for a reaction are obtained from the
- A.
Coefficients
- B.
Chemical symbols
- C.
Molar masses
- D.
Subscripts
- 2.If 5.5 mol calcium carbide (CaC2) reacts with an excess of water, how many moles of acetylene (C2H2) will be produced? The balanced equation is as follows: CaC2 + 2H2O → Ca(OH)2 + C2H2
- A.
11.0 moles
- B.
5.50 moles
- C.
352.0 moles
- D.
2.75 moles
- 3.Use the following balanced equation to determine how many moles of CaCO3 can be dissolved in 0.0250 mol of HCl. CaCO3 + 2HCl → CaCl2 + H2O + CO2
- A.
0.0250 mol
- B.
0.05 mol
- C.
0.0125 mol
- D.
2.5 mol
- 4.Consider the following balanced equation. C12H22O11 + 3O2 → 2H3C6H5O7 + 3H2O Determine the mass of citric acid (H3C6H5O7) produced when 2.5 mol C12H22O11 is used.
- A.
5.0 mol
- B.
192.14 grams
- C.
481 grams
- D.
961 grams
- 5.Chloroform (CHCl3) is produced by a reaction between methane and chlorine. Use the balanced chemical equation for this reaction to determine the mass of CH4 needed to produce 50.0 g of CHCl3. Balanced Equation: CH4 + 3Cl2 → CHCl3 + 3HCl
- A.
6.72 grams
- B.
119.37 grams
- C.
10.04 grams
- D.
11.9 grams
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