q9key - 1. 2. Chem 171 Quiz 9 Version A (Key Antacid CO2)...

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Chem 171 Quiz 9 Version A (Key Antacid CO 2 ) 1. Write the products for the following reactions and balance the equations: Al(OH) 3 (s) + HCl(aq) -----> CaCO 3 (s) + HCl(aq) -----> MgCO 3 (s) + HCl(aq) -----> Mg(OH) 2 (s) + HCl(aq) -----> NaHCO 3 (aq) + HCl(aq) -----> Al(OH) 3 (s) + 3 HCl(aq) -----> AlCl 3 (aq) + 3 H 2 O(l) CaCO 3 (s) + 2 HCl(aq) -----> CaCl 2 (aq) + H 2 O(l) + CO 2 (g) (or H 2 CO 3 (aq) MgCO 3 (s) + 2 HCl(aq) -----> MgCl 2 (aq) + H 2 O(l) + CO 2 (g) (or H 2 CO 3 (aq) Mg(OH) 2 (s) + 2 HCl(aq) -----> MgCl 2 (aq) + 2 H 2 O(l) NaHCO 3 (aq) + HCl(aq) -----> NaCl(aq) + H 2 O(l) + CO 2 (g) (or H 2 CO 3 (aq) 2. The following questions refer to the experiment entitled “Determining the Molar Volume of Carbon Dioxide”. R = 0.0821 L atm / K mol. PV = nRT What is the purpose of this experiment? What is dry ice? What is the hazard associated with dry ice? What would happen to the molar volume of CO 2 if you stopper the flask while solid CO 2 was still present in the flask? Why|? What is an ideal gas? Purpose: To determine the volume of one mole of carbon dioxide gas at STP Dry Ice: Solid CO 2 Hazard: Frostbite Stopper the flask: The molar volume of CO 2 will go down because the calculated mass of CO 2 will be higher, the number of moles will be higher, the molar volume will be smaller since the V will be divided by the larger number of moles Ideal gas: Ideal gas is a gas in which the attractive and repulsive forces are negligible, and the volume of the gas particles is vanishingly small in comparison to the container. Chem 171 Quiz 9 Version B
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This note was uploaded on 02/05/2012 for the course 160 171 taught by Professor Staff during the Spring '08 term at Rutgers.

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q9key - 1. 2. Chem 171 Quiz 9 Version A (Key Antacid CO2)...

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