Chem_171_Su_08_Q5_NIE_CO2_Key_Posted-973

Chem_171_Su_08_Q5_NIE_CO2_Key_Posted-973 - 1. 2. Chem 171...

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Chem 171 Quiz 5 Version A (5 pts each) (Show work, unit, sig fig for full credit) Name Sec 1. You are given two samples and told that one is PbSO 4 and the other one is PbCO 3 . Given that you have the typical reagents in the lab, how will you identify each one. Write the corresponding molecular, complete ionic and net ionic equations. Show the phases. Identify any spectator ions if available. You can add acid, PbCO 3 (s) will dissolve. PbSO 4 (s) will not dissolve in acid PbCO 3 (s) + 2CH 3 COOH (aq) Pb(CH 3 COO) 2 (aq) + CO 2 (g) + H 2 O(l) (Molecular Equation) PbCO 3 (s) + 2CH 3 COOH (aq) Pb 2+ (aq) + 2CH 3 COO - (aq) + CO 2 (g) + H 2 O(l) (Complete Ionic Equation) Net Ionic Equation is the same as the Complete Ionic Equation No Spectator Ion Note: Other acids can be used 2. The following “fill in the blanks” pertain to the experiment entitled “Determination of the Molar Volume of Carbon Dioxide”: a. Ideal Gases are gases in which the attractive and repulsive forces are negligible. b. The volume of gas particles for an ideal gas are small in comparison to the container. Chem 171 Quiz 5 Version B (5 pts each) (Show work, unit, sig fig for full credit)
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This note was uploaded on 01/20/2009 for the course CHEM chem 171 taught by Professor Siegal during the Spring '09 term at Rutgers.

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Chem_171_Su_08_Q5_NIE_CO2_Key_Posted-973 - 1. 2. Chem 171...

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