An old 0.500 L lecture bottle of triethylamine (N(CH2CH3)3) was found in a lab and needed for a synthesis reactio...
An old 0.500 L lecture bottle of triethylamine (N(CH2CH3)3) was found in a lab and needed for a synthesis reaction. A pressure regulator indicated a pressure of 25.0 psi, and the lab was at room temperature (25°C). What mass of vaporized triethylamine was left in the lecture bottle?
You placed 6.35 g of a mixture containing unknown amounts of BaO(s) and MgO(s) in a 3.50-L flask containing CO2(g) at 30.0°C and 750. torr. After the reaction to form BaCO3(s) and MgCO3(s) was completed, the pressure of CO2(g) remaining was 185 torr. Calculate the mass of BaO(s) in the mixture.
At the same temperature, which of the following gases will have the fastest rate of effusion?
A) CO
B) SF6
C) Cl2
D) HBr
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An old 0.500 L lecture bottle of triethylamine (N(CH2CH3)3) was found in a lab and needed for a synthesis reactio...
You placed 6.35 g of a mixture containing unknown amounts of BaO(s) and MgO(s) in a...
You placed 6.35 g of a mixture containing unknown amounts of BaO(s) and MgO(s) in a 3.50-L flask containing CO₂(g) at 30.0°C and 750. torr. After the reaction to form BaCO₃(s) and MgCO₃(s) was completed, the pressure of CO₂(g) remaining was 135 torr. Calculate the mass of BaO(s) in the mixture.
Ta=191.4k| 4 P = 850 forr Pa -0.65 om. 2496 ore A 5.50 L volume of...
Ta=191.4k| 4 P = 850 forr Pa -0.65 om. 2496 ore A 5.50 L volume of gas has a pressure of 0.950 atm at 0°C. What is the pressure volume decreases to 4.75 L and the temperature increases to 35°C? V=5.SOL P=0.950 atm P2=1.22atml S. A 0.112 mol quantity of gas has a volume of 2.54 L at a certain temperature and pressure. What is the volume of 0.0750 mol of gas under the same conditions? V2 = 1902) (6....
39) What property of liquids explains the formation of leaves? A) surface tension B) adhesion C)...
39) What property of liquids explains the formation of leaves? A) surface tension B) adhesion C) viscosity D) vapor pressure E) None of the choices are correct. mation of spherical water droplets on green 3 9) - um at constant pressure and temperature has the volume 40) 40) A balloon containing helium at constant pres doubled by adding a more helium. Which ' adding a more helium. Which statement(s) isare) TRUE? A) The number of moles of helium doubled. B)...
#3 PRE-LAB 1. Define Heat capacity - The amount of neat supplied to a given mass...
#3
PRE-LAB 1. Define Heat capacity - The amount of neat supplied to a given mass of material to produce unit change in temperature units = or to b. Specific heat - the amant of heat supplied to one unit mass of substance in order to raise the temperature by one Unit Units of specific heat is you or gik 2. In an experiment to determine the heat capacity of a Styrofoam cup calorimeter, 50 ml of water at 47...
3.355 M K2SO4 solution can be prepared by A) dilution of 500.0 mL of 1.00 MK2SO4...
3.355 M K2SO4 solution can be prepared by A) dilution of 500.0 mL of 1.00 MK2SO4 to 1.00 L B) dissolving 46.7 g of K2SO4 in water and diluting to 500.0 ml, then diluting 25.0 ml of this solution to a total volume of 500.0 mL C) dissolving 46.7 g of K2SO4 in water and diluting to a total volume of 250.0 mL D) dilution of 1.00 mL of 0.355 M K2SO4 to 1.00 L E) diluting 46.7 mL of...
help on number 3 here is lab we did EXPERIMENT 19 An Analysis of Commercial Antacids...
help on number 3 here is lab we did
EXPERIMENT 19 An Analysis of Commercial Antacids Rolaids Alka Seltzer OBJECTIVES: Determine the per gram neutralizing ability of a commercial antacio Determine the per gram neutralizing ability of sodium bicarbonate Compare the effectiveness of several antacids. INTRODUCTION: "How do you spell relief two hecimie The parietal cells in the stomach secrete sufficient hydrochloric aci 0.10 M The flow of HCl increases when food enters the stomach and so acid secrete sufficient...
(6 pts.) 1. The air pressure in the inner tube of a tire on a typical...
(6 pts.) 1. The air pressure in the inner tube of a tire on a typical racing bike is held at a pressure of 115 psi (pounds! per square inch). Convert this pressure to atm and mm Hg. (3 pts. each) The atmospheric pressure is 0.978 atm. Determine the pressure of the enclosed gas in each of the cases depicted below. Gas Gas (6 pts.) 3. A 5.90 L bottle contains 1070 g of oxygen at 25.0°C. Calculate the pressure...
Ta=191.4k| 4 P = 850 forr Pa -0.65 om. 2496 ore A 5.50 L volume of gas has a pressure of 0.950 atm at 0°C. What is the pressure volume decreases to 4.75 L and the temperature increases to 35°C? V=5.SOL P=0.950 atm P2=1.22atml S. A 0.112 mol quantity of gas has a volume of 2.54 L at a certain temperature and pressure. What is the volume of 0.0750 mol of gas under the same conditions? V2 = 1902) (6....
39) What property of liquids explains the formation of leaves? A) surface tension B) adhesion C) viscosity D) vapor pressure E) None of the choices are correct. mation of spherical water droplets on green 3 9) - um at constant pressure and temperature has the volume 40) 40) A balloon containing helium at constant pres doubled by adding a more helium. Which ' adding a more helium. Which statement(s) isare) TRUE? A) The number of moles of helium doubled. B)...
#3
PRE-LAB 1. Define Heat capacity - The amount of neat supplied to a given mass of material to produce unit change in temperature units = or to b. Specific heat - the amant of heat supplied to one unit mass of substance in order to raise the temperature by one Unit Units of specific heat is you or gik 2. In an experiment to determine the heat capacity of a Styrofoam cup calorimeter, 50 ml of water at 47...
3.355 M K2SO4 solution can be prepared by A) dilution of 500.0 mL of 1.00 MK2SO4 to 1.00 L B) dissolving 46.7 g of K2SO4 in water and diluting to 500.0 ml, then diluting 25.0 ml of this solution to a total volume of 500.0 mL C) dissolving 46.7 g of K2SO4 in water and diluting to a total volume of 250.0 mL D) dilution of 1.00 mL of 0.355 M K2SO4 to 1.00 L E) diluting 46.7 mL of...
help on number 3 here is lab we did
EXPERIMENT 19 An Analysis of Commercial Antacids Rolaids Alka Seltzer OBJECTIVES: Determine the per gram neutralizing ability of a commercial antacio Determine the per gram neutralizing ability of sodium bicarbonate Compare the effectiveness of several antacids. INTRODUCTION: "How do you spell relief two hecimie The parietal cells in the stomach secrete sufficient hydrochloric aci 0.10 M The flow of HCl increases when food enters the stomach and so acid secrete sufficient...
(6 pts.) 1. The air pressure in the inner tube of a tire on a typical racing bike is held at a pressure of 115 psi (pounds! per square inch). Convert this pressure to atm and mm Hg. (3 pts. each) The atmospheric pressure is 0.978 atm. Determine the pressure of the enclosed gas in each of the cases depicted below. Gas Gas (6 pts.) 3. A 5.90 L bottle contains 1070 g of oxygen at 25.0°C. Calculate the pressure...
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