# Ultimate Quiz On Stoichiometry Quiz

5 Questions | Total Attempts: 3367  Settings  Related Topics
• 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