What is the percentage of nitrogen in the air we breathe?
Question:
What is the percentage of nitrogen in the air we breathe?
Earth's Atmosphere:
The atmosphere of the earth is the layer of gases that surrounds the earth, and it has many layers and is composed of various gases. The layer of the atmosphere that we breathe, which is closest to the earth, is the troposphere.
Answer and Explanation: 1
Become a Study.com member to unlock this answer! Create your account
View this answerThe percentage of nitrogen in the air we breathe is 78 percent. This means that the vast majority of the atmosphere we breathe is nitrogen, with...
See full answer below.
Ask a question
Our experts can answer your tough homework and study questions.
Ask a question Ask a questionSearch Answers
Learn more about this topic:

from
Chapter 19 / Lesson 1Learn what gases make up the atmosphere. Identify the components of the atmosphere and understand the significance of the composition of gases in Earth's air.
Related to this Question
- What is the percentage of carbon dioxide in the air we breathe?
- Fill in the blank with correct word/s. The percentage of nitrogen in inhaled air is \rule{1in}{.2mm} % and exhaled air is \rule{1in}{.2mm} %.
- What percentage of the human body is made out of water in comparison to nitrogen?
- The percentage of carbon dioxide in the inhaled air is ................% and exhaled air is ..............%.
- What percentage of water and oxygen is there on planet earth?
- What is the percentage of CO2 in the atmosphere and what is the percentage of dissolved CO2 in the oceans?
- The appropriate amount of oxygen in the air is (a) 21 percentage (b) 50 percentage (c) 35 percentage (d) 16 percentage (e) 77 percentage
- Research the chemical components of the air we breathe. What are the percentages of each chemical in our air? Why can't humans breathe in outer space? How about on the moon or on Mars?
- What are atmospheric oxygen and atmospheric carbon dioxide?
- The approximate amount of oxygen in the air is (a) 21%. (b) 77%. (c) 50%. (d) 16%. (e) 35%.
- What percentage of the earth's surface is covered with ocean water?
- a.Explain the percentages of chemical compounds present in the air and the role of these compounds in the research? b.why do humans can't breathe in the outer space, and also in moon and Mars speci
- The percentage for carbon dioxide in the atmosphere, 0.03%, seems like such a small number. How can changes in this percentage be a factor in climate change?
- What is the most abundant gas in the atmosphere? When rounded to the nearest whole percent, it makes up % of the atmosphere.
- Where is the majority of the nitrogen present on Earth?
- Research the chemical components of the air we breathe. Indicate the percentages of each chemical in our air. Why can't humans breathe in outer space? How about on the moon, or on Mars?
- What is the most abundant constituent of atmospheric air?
- What is the pressure in atmospheres exerted by a 0.500 mol sample of nitrogen gas in a 10.0 L container at 298 K?
- Assuming the percentage of oxygen is about 30 percent and the PB is 765 mm Hg, calculate the partial pressure of oxygen.
- Fill in the blank. Breathing 100 percent oxygen at one atmosphere changes the CO_(Hb) half-life to less than _______________________.
- Nitrogen has an atomic number of 7. How many covalent bonds can nitrogen form?
- Which of the following is correct? The atmosphere contains: a. Nitrogen 48% b. Oxygen 20.9% c. Argon 9% d. Carbon di oxide 4% e. Water -10%
- What greenhouse gas has the highest percentage in the atmosphere?
- Explain the gas mixture used in single breath nitrogen washout and helium dilution.
- Select the correct answer. The two most abundant gases of inhaled air are a. carbon dioxide and nitrogen. b. carbon dioxide and oxygen. c. carbon monoxide and nitrogen. d. nitrogen and oxygen. e. nitrogen and sulfur dioxide.
- Approximately, what percent of your body is composed of water?
- Which of these elements does not cycle through the air? a. nitrogen b. phosphorous c. carbon d. oxygen
- The most abundant constituent of atmospheric air is: a. Oxygen b. Hydrogen c. Carbon d. Nitrogen
- Select the correct answer. Which of the following elements makes up the majority of Earth's atmosphere? a. Oxygen b. Hydrogen c. Argon d. Nitrogen
- Although nitrogen is the most abundant gas in the atmosphere, it is available to life on earth partly because __________________ carry out __________________. a. nitrifiers / ammonification b. bacteria / nitrogen fixation c. plants / nitrification d. ammo
- Given that nitrogen has an atomic number of 7, how many protons, neutrons, and electrons are expected in the typical nitrogen atom?
- What percentage of the earth's water supply is available to humans and other species as liquid freshwater? Explain how human activities are affecting the water cycle.
- What percentage of the earth is covered by water? Explain in detail how this changes throughout history.
- What is nitrogen's group number and period number?
- Identify approximate oxygen percentages associated with liter flows of 1-6L/min in adults.
- The amount of air that can be forcibly inhaled beyond the VT is the ______________.
- Which statement is NOT true? A) Some bacteria are able to use nitrates or nitrogen gas as their nitrogen source. B) Most bacteria are capable of using ammonia as their sole nitrogen source. C) Most available nitrogen is in organic forms. D) Nitrogen is a
- What is the approximate percentage (in mass) of water in the human body? Do you think this percentage is larger in adults or in the elderly?
- If we increase water vapor in the atmosphere, what does it do to the air density?
- Nitrogen-fixing bacteria convert atmospheric nitrogen (N2 gas) into ammonium (NH4). Why is this conversion important for life on Earth? a) Nitrogen gas leads to global warming. b) Ammonium is an important cleaning agent. c) Nitrogen gas is toxic. d) Am
- An analysis of an oxide of nitrogen with a molecular weight of 92.02 amu gave 69.57% oxygen and 30.43% nitrogen. What are the empirical and molecular formulas for this nitrogen oxide? Complete and bal
- What percentage of total body weight is composed of body fluid?
- What percentage of the earth's land and what percentage of the earth's oceans have been disturbed by human activities?
- Which element makes up ozone? a. carbon b. oxygen c. hydrogen d. nitrogen
- The two gases that comprise almost all of the air that we breathe are __________. a. oxygen and carbon dioxide. b. methane and carbon dioxide. c. oxygen and argon. d. nitrogen and oxygen.
- Which of the following is NOT an abiotic factor? A. Proportion of oxygen in the atmosphere B. How much temperature fluctuates from winter to summer C. How many microbes are in the soil D. How many
- Breathing is more difficult in higher altitudes because the _______. (a) air weighs less (b) partial pressure of atmospheric oxygen is lower (c) partial pressure of atmospheric carbon dioxide is higher (d) partial pressure of atmospheric nitrogen is lower
- Fill in the blanks. Because alveolar gas is 100 percent humidified (saturated) at body temperature, the alveolar gas is assumed to have an ____________, and a ___________, regardless of the humidity of the inspired air.
- What is the highest ozone layer in the atmosphere?
- Research the chemical components of the air we breathe.
- The volume of an automobile air bag was 74.8L, when inflated at 30 degrees C, with 77.8g of nitrogen (N2) gas. What was the pressure in the bag, in mm of Hg?
- Which gas below was not found in the earth's earliest atmosphere? a. O2 b. SH2 c. CH4 d. NH3 e. all the above
- What is the approximate amount of air that is exchanged in a quiet breathing cycle? a. 500 ml b. 1200 ml c. 3000 ml d. 750 ml e. 5000 ml
- What gas is a human-made pollutant in the lower (surface) atmosphere but a natural and beneficial gas in the stratosphere? (a) CO2 (b) CH4 (c) O3 (d) CFCs (e) N2O
- What is the approximate percentage (in mass) of water in the human body? Do you think this percentage is larger in adults or in the elderly? Justify your answer.
- What accounts for the "oxygen minimum zone" located in the pycnocline?
- Which one of the following is not a trace element in the human body? a. fluorine b. nitrogen c. zinc d. manganese e. iodine. The human body contains about 2.6% nitrogen. That is way above the percent
- What are the eons in which the oxygen appeared in the atmosphere occurred?
- Determine the percentage of water in a human's body.
- Which layer of the atmosphere contains the ozone? A) Troposphere B) Thermosphere C) Mesosphere D) Stratosphere
- How many moles of oxygen are in a compressed cylinder that has a volume of 8.00 L at a pressure of 14.0 atm and at 25^oC?
- What percentage of parent isotopes remain after 10 half-lives?
- Dinitrogen in the air can contribute to nitrogen in the soil useful to plants through natural processes, including a) biological nitrogen fixation. b) industrial nitrogen fixation. c) electrical nitrogen fixation. d) A and C. e) B and C.
- Which of the following is not believed to have been a component of the early Earth's atmosphere? a. N2 (nitrogen gas) b. H2 (hydrogen gas) c. CO2 (carbon dioxide) d. O2 (oxygen gas)
- What percentage of the world's oceans is strictly protected from harmful human activities in marine reserves?
- The volume of an automobile air bag was 74.8 L when inflated at 30 deg C with 77.8 g of nitrogen (N2) gas. What was the pressure in the bag in mm of Hg?
- Approximately what percent of the total filtered volume is excreted as urine each day?
- How do nitrogen and phosphorus pollution from sewage and fertilizers deplete oxygen from a lake? a. They don't; they actually increase the oxygen content of the lake. b. By chemical reaction with oxygen. c. By forming a chemical blanket on the surface. d.
- A weather balloon is filled with 120L of helium, at 15 degrees C, and a pressure of 0.80atm. What is the volume of the balloon, after it rises in the atmosphere, to an altitude, where the pressure is
- What should the percent composition of carbohydrates, proteins, and fats be for an endurance athlete's diet?
- Which of the following contributes to global warming? a. nitrogen b. carbon dioxide c. helium d. chlorine
- The oxygen extraction ratio (O2ER) is defined as the amount of oxygen ___________ .
- What is the type of pollution that impact nitrogen cycle and the connection between burning fossil fuel and excess nitrogen in the atmosphere?
- What is the mass (grams) of ammonia produced when 58.5 g hydrogen and 280 g nitrogen react to form ammonia?
- In a gas mixture, the partial pressures are argon, 415 torr, neon, 75 torr, and nitrogen, 125 torr. What is the pressure, atm., exerted by this mixture?
- Choose THREE best answers. During quiet (restful) breathing . a. the amount of air that is exhaled in a breathing cycle is called the tidal volume. b. the amount of air that is exhaled is equal to the amount of air that is inhaled in one breathing cycl
- How does the stratosphere affect human beings? a. It is the layer of the atmosphere in which we live and breathe. b. It is the layer of the atmosphere in which satellites orbit. c. It is the layer of the atmosphere that filters ultraviolet rays. d. It is
- Oxygen is much less abundant in water than in air. Air contains 21% oxygen, but the oxygen content in water is only 0.001%. What factors (physical and biological) can affect the levels of dissolved ox
- How many layers are in the earth's atmosphere and what are they called?
- How many bonds can oxygen form?
- Calculate the pressure, in atmospheres, of 4.78 mol CO ( g ) in a 4.5 L tank at 50 degrees C.
- What percentage of the earth's land suffers from severe drought today and how might this change by 2059? How many people in the world lack regular access to clean water today?
- Exhaled air, when compared with inhaled air, contains more.........................
- When did oxygen began to accumulate in the atmosphere?
- Fill in the blanks. Even though the barometric pressure decreases with the altitude, the __________ of all the atmospheric gases remains the _______ at both high and low elevations. In other words, the percentage of oxygen is always about 21percent-both a
- Approximately, how many molecules of oxygen can be carried within one erythrocyte? (a) 280 million (b) 1.12 billion (c) 50 million (d) 1.5 trillion (e) 11.2 billion.
- During very heavy exercise, the tidal volume is usually about what percentage (circle one) of the vital capacity? a. 10 percent b. 20 percent c. 30 percent d. 40 percent e. 50 percent f. 60 percent
- The average oxygen consumption index ranges between ___________ and mLO_2/m^2.
- What atmospheric gas is changing the global climate?
- On Earth, what atmosphere do we live in and how many exist in the universe?
- Which of the following is a benefit of gas exchange in air compared with gas exchange in water? (a) air has a higher concentration of molecular oxygen (b) oxygen diffuses more slowly in air (c) no energy is required for ventilation (d) moist respiratory s
- The air pressure at the top of Mt. Everest is about 300 mb. What fraction of the atmospheric mass lies between sea level and the top of the mountain?
- What gases comprise greenhouse gas?
- The most abundant element by weight in the human body is a. carbon. b. hydrogen. c. oxygen. d. nitrogen.
- Assume that coal can be represented by the chemical formula C_{135}H_{96}O_9NS. If 1.0 tons of coal is burned, what mass of nitrogen in NO is produced?
- Name the process through which free atmospheric nitrogen is converted into nitrates.
- Select the correct answer. Oxygen is the element that makes up more than half of which entity? a. Earth's crust b. Earth's atmosphere c. The human body d. The universe
- How many covalent bonds can be formed by atoms of carbon, oxygen, nitrogen, and hydrogen?
- What percentage of women have dense breasts?
- The conversion of atmospheric nitrogen to ammonia, nitrates, and nitrates is called: a. ammonification b. decarboxylation c. denitrification d. nitrification e. nitrogen fixation