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CHM 110 Version B Page 1 Exam 2 Fall 2019 16. Jurgen did the chemical analysis...
n = 40.304 24.30416 moleaner haunt 17. Anna exhaled air containing CO2 at a pressure of...
n = 40.304 24.30416 moleaner haunt 17. Anna exhaled air containing CO2 at a pressure of 27.0 torr. The capacity of a human lung is about 3.00 L. Body temperature is 36.5°C. a) (5 pts) Convert the pressure to atm. b) (5 pts) Convert the temperature to Kelvin scale. c) (8 pts) Calculate the mass of CO2 in a lung before expiration.
7, 8 CHM 110 Page 4 of 6 Homework II Fall 2019 7. Eleanora takes 125...
7, 8
CHM 110 Page 4 of 6 Homework II Fall 2019 7. Eleanora takes 125 g of takes 125 g of vitamin B12. Its molecular formula is C63Hs&CoN14014P. a) (3 pts) Calculate the molar mass of this compound. b) (3 pts) How many moles of vitamin B12 are in 125 ug? c) (4 pts) How many molecules of vitamin B12 are in 125 pg? 8. Islam inhaled air containing O2 at a pressure of 160 torr. The capacity of...
M 110 Exam 2 Fall 2019 Version B Page 3 of 7 7. Ahmed learned that...
M 110 Exam 2 Fall 2019 Version B Page 3 of 7 7. Ahmed learned that the physical properties of gases depend on only four variables. Which of the following is NOT among these four variables for gases? a. Pressure b. Volume c. Number of moles d. Molar mass e. Kelvin temperature Answer: When Wenjing breathe in, the rib muscles and diaphragm contract to expand the lung volume, which decreases the pressure in the lung and the air is drawn...
balance each of the following equations Fall 209 CHM 105.004 Exam 2 Answer all the question in order in the blue b...
balance each of the following equations
Fall 209 CHM 105.004 Exam 2 Answer all the question in order in the blue book. Plesse leave at least two lines between question and show your calculations for full credit. N-6.023 x 10” particles per mol: R 0.08.205 L-atm/(mol-K) b) Al2(PO4) 3 e) CuSO4-5 H2O 1. Calculate the molar masses of: a) (NH4)2SO4 2. Calculate: a) the number of atoms of calcium in a 10.50 g sample of the metal b) the mass...
Please answer all the blanks (volume if H2 and everything in analysis). TIA! Data 5 1...
Please answer all the blanks (volume if H2 and
everything in analysis). TIA!
Data 5 1 oong 0.00 10.5ml 2 o.olag 0.00 11.0 Trial 3 o.org 0.00 12.00 o Daag o.albg 0.00 10.0 ml 11.5ml Mass of Mg (g) Initial volume of Syringe (mL) Final volume of Syringe (mL) Volume of H (mL) Barometric pressure (torr) Ambient temperature (°C) Vapor pressure of H2O (torr) 779.314har 23. Oi 21.0 forr TA.314tar 23.0c 179.3 14ton 23.0¢ 779.314 ton 23.0c 779.31472 23.0c 21.0...
T H E HUL I giups, UI CUPY WILT Work 1) Refer to the following information...
T H E HUL I giups, UI CUPY WILT Work 1) Refer to the following information for parts a-d: The calcium ion is among the most important minerals for the human body. Maintaining proper calcium levels over a lifetime is strongly correlated with osteoporosis prevention. The recommended daily allowance (RDA) of calcium is 1.200 mg daily. Calcium supplements are available as calcium carbonate and calcium citrate, Ca (C.HSO). a. What is the mass percent of calcium in calcium citrate? b....
CHM 1210 Final practice Name: Know electrolyte table, 5 solubility rules; 26 polyatomics (name/formula) Write 7...
CHM 1210 Final practice Name: Know electrolyte table, 5 solubility rules; 26 polyatomics (name/formula) Write 7 naturally occurring diatomic molecules (name; formula, phase , charge) Write rite out strong acids and weak acids by name; formula, phase ,charge Write out the molecular, complete, and net-ionic equations for the following reactions The mixing of Cobalt(IlI) chloride and silver nitrate The mixing of acetic acid and sodium hydroxide The mixing of hydrochloric acid and cakcium hydroxide The mixing of barium chloride and...
(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...
n = 40.304 24.30416 moleaner haunt 17. Anna exhaled air containing CO2 at a pressure of 27.0 torr. The capacity of a human lung is about 3.00 L. Body temperature is 36.5°C. a) (5 pts) Convert the pressure to atm. b) (5 pts) Convert the temperature to Kelvin scale. c) (8 pts) Calculate the mass of CO2 in a lung before expiration.
7, 8
CHM 110 Page 4 of 6 Homework II Fall 2019 7. Eleanora takes 125 g of takes 125 g of vitamin B12. Its molecular formula is C63Hs&CoN14014P. a) (3 pts) Calculate the molar mass of this compound. b) (3 pts) How many moles of vitamin B12 are in 125 ug? c) (4 pts) How many molecules of vitamin B12 are in 125 pg? 8. Islam inhaled air containing O2 at a pressure of 160 torr. The capacity of...
M 110 Exam 2 Fall 2019 Version B Page 3 of 7 7. Ahmed learned that the physical properties of gases depend on only four variables. Which of the following is NOT among these four variables for gases? a. Pressure b. Volume c. Number of moles d. Molar mass e. Kelvin temperature Answer: When Wenjing breathe in, the rib muscles and diaphragm contract to expand the lung volume, which decreases the pressure in the lung and the air is drawn...
balance each of the following equations
Fall 209 CHM 105.004 Exam 2 Answer all the question in order in the blue book. Plesse leave at least two lines between question and show your calculations for full credit. N-6.023 x 10” particles per mol: R 0.08.205 L-atm/(mol-K) b) Al2(PO4) 3 e) CuSO4-5 H2O 1. Calculate the molar masses of: a) (NH4)2SO4 2. Calculate: a) the number of atoms of calcium in a 10.50 g sample of the metal b) the mass...
Please answer all the blanks (volume if H2 and
everything in analysis). TIA!
Data 5 1 oong 0.00 10.5ml 2 o.olag 0.00 11.0 Trial 3 o.org 0.00 12.00 o Daag o.albg 0.00 10.0 ml 11.5ml Mass of Mg (g) Initial volume of Syringe (mL) Final volume of Syringe (mL) Volume of H (mL) Barometric pressure (torr) Ambient temperature (°C) Vapor pressure of H2O (torr) 779.314har 23. Oi 21.0 forr TA.314tar 23.0c 179.3 14ton 23.0¢ 779.314 ton 23.0c 779.31472 23.0c 21.0...
T H E HUL I giups, UI CUPY WILT Work 1) Refer to the following information for parts a-d: The calcium ion is among the most important minerals for the human body. Maintaining proper calcium levels over a lifetime is strongly correlated with osteoporosis prevention. The recommended daily allowance (RDA) of calcium is 1.200 mg daily. Calcium supplements are available as calcium carbonate and calcium citrate, Ca (C.HSO). a. What is the mass percent of calcium in calcium citrate? b....
CHM 1210 Final practice Name: Know electrolyte table, 5 solubility rules; 26 polyatomics (name/formula) Write 7 naturally occurring diatomic molecules (name; formula, phase , charge) Write rite out strong acids and weak acids by name; formula, phase ,charge Write out the molecular, complete, and net-ionic equations for the following reactions The mixing of Cobalt(IlI) chloride and silver nitrate The mixing of acetic acid and sodium hydroxide The mixing of hydrochloric acid and cakcium hydroxide The mixing of barium chloride and...
(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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