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4.(16pts, min) Do either (a) or (b) (a) How many ml. of 0.0550M COH is needed...
5.(16 pts, 8min) Do either (a) or (b) (a) A sample of Ar(g) having a mass of 0.0166 g is collected over water. If t...
5.(16 pts, 8min) Do either (a) or (b) (a) A sample of Ar(g) having a mass of 0.0166 g is collected over water. If the temperature and total pressure of the system are 48.0°C and 676 mmHg respectively, what is the volume of the gas expressed in liters? Data: is 83.71 mmHg. R= 0.0821 L atm/(K mol), 1 atm 760 mmHg Atomic mass of Ar-39.95 and the vapor pressure of water at 48.0°C (b) Consider the following reaction: 2 NAOH(aq)+2...
5) How many moles of hydrogen gas are needed to react with oxygen to form one...
5) How many moles of hydrogen gas are needed to react with oxygen to form one mole of 5) water? 2H2(8) + O268) - 2H20(1) A) 4 mol B) 1 mol C) 2 mol D) 0.5 mol E) 6 mol 6) Incomplete combustion occurs when there is insufficient oxygen to react with a compound. The suffocating gas carbon monoxide is a product of incomplete combustion. How many moles of oxygen gas are required for the complete combustion of 11.0 moles...
Food and beverage containers are commonly made of tin, steel, aluminum, or a combination of metals....
Food and beverage containers are commonly made of tin, steel, aluminum, or a combination of metals. Suppose that a laboratory procedure requires a can be made of aluminum. Which property can be used to determine if a can is likely to be made of aluminum? O color Odensity volume mass What is the density of a pear that occupies 32 cm and has a mass of 42 g O 0.7619 g-cm 0 2.0 g.cm O 1.3125 g-cm O 0.76 g.cm...
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)...
Exam Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the...
Exam Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) 1) One mole of any substance contains Avogadro's number of particles of that substance. What is the numerical value of Avogadro's number? A) 12.01 23 Avagrans t Male aton 6022 x1o atums B) 6.022 x 1023 C) 6.022 x 10-23 D) 1.661 x10-24 E) 1.00 x10-14 2) What is the mass of 4.00 moles of helium, the gas commonly used to fill...
5.(16 pts, 8min) Do either (a) or (b) (a) A sample of Ar(g) having a mass of 0.0166 g is collected over water. If the temperature and total pressure of the system are 48.0°C and 676 mmHg respectively, what is the volume of the gas expressed in liters? Data: is 83.71 mmHg. R= 0.0821 L atm/(K mol), 1 atm 760 mmHg Atomic mass of Ar-39.95 and the vapor pressure of water at 48.0°C (b) Consider the following reaction: 2 NAOH(aq)+2...
5) How many moles of hydrogen gas are needed to react with oxygen to form one mole of 5) water? 2H2(8) + O268) - 2H20(1) A) 4 mol B) 1 mol C) 2 mol D) 0.5 mol E) 6 mol 6) Incomplete combustion occurs when there is insufficient oxygen to react with a compound. The suffocating gas carbon monoxide is a product of incomplete combustion. How many moles of oxygen gas are required for the complete combustion of 11.0 moles...
Food and beverage containers are commonly made of tin, steel, aluminum, or a combination of metals. Suppose that a laboratory procedure requires a can be made of aluminum. Which property can be used to determine if a can is likely to be made of aluminum? O color Odensity volume mass What is the density of a pear that occupies 32 cm and has a mass of 42 g O 0.7619 g-cm 0 2.0 g.cm O 1.3125 g-cm O 0.76 g.cm...
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)...
Exam Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) 1) One mole of any substance contains Avogadro's number of particles of that substance. What is the numerical value of Avogadro's number? A) 12.01 23 Avagrans t Male aton 6022 x1o atums B) 6.022 x 1023 C) 6.022 x 10-23 D) 1.661 x10-24 E) 1.00 x10-14 2) What is the mass of 4.00 moles of helium, the gas commonly used to fill...
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