The burning of 18.0 g of carbon produces 55.0 g of carbon dioxide. What is the theoretical yield of CO2? Calculate the percent yield of CO2.

8,075 results
  1. Science

    What is one effect that burning fossil fuels has on the atmosphere?(1 point) causes carbon dioxide levels to stay the same as from before the industrial era increases levels of greenhouse gases decreases carbon dioxide available to plants causes nitrogen

  2. science

    How do fossil fuels play a role in the carbon cycle?(1 point) Fossil fuels require a lot of carbon to burn, which takes carbon out of the atmosphere. Fossil fuels are rich in carbon, and burning them returns carbon to the soil. Fossil fuels require a lot

  3. chemistry

    1. Chlorobenzene, C6H5Cl, is used in the production of chemicals such as aspirin and dyes. One way that chlorobenzene is prepared is by reacting benzene, C6H6, with chlorine gas according to the following BALANCED equation. C6H6 (l) + Cl2 (g)

  4. science

    How do fossil fuels play a role in the carbon cycle?(1 point) Fossil fuels require a lot of carbon to burn, which takes carbon out of the atmosphere. Fossil fuels are rich in carbon, and burning them returns carbon to the soil. Fossil fuels require a lot

  5. Chemistry

    An equilibrium mixture contains 0.250 mol of each of the products (carbon dioxide and hydrogen gas) and 0.200 mol of each of the reactants (carbon monoxide and water vapor) in a 1.00-L container. CO(g) + H2O(g) CO2(g)+ H2(g) How many moles of carbon

  6. science

    What happens to carbon in plants when the plants die? The carbon is released into the soil, but it is not used again. The carbon will be released into the soil for use by the next generation.*** The carbon is not released; it is lost. The carbon is

  7. Chemistry

    Can someone answer this question? The enthalpy of combustion of solid carbon to form carbon dioxide is -393.7 kJ/mol carbon, and the enthalpy of combustion of carbon monoxide to form carbon dioxide is -283.3 kj/mol CO. Use these data to calculate ∆H for

  8. Biology

    Biology B: Storage of Carbon Quick Check Q-A, Answer = *** Which reservoir has the largest deposit of carbon? rocks and sediment*** atmosphere oceans (google says it but trust me, I got this question wrong) plant biomass What do plants use for energy?

  9. science

    The ocean stores carbon from its interactions with the atmosphere, so the ocean serves as (a) _________ for the carbon cycle. carbon flux carbon dioxide carbon source carbon sink*** Bacteria add carbon to the carbon cycle by decomposing dead organisms.***

  10. chemistry

    The enthalpy of combustion of carbon to carbon dioxide is -394 kJ according to the equation: C (s) + O2 (g) --> CO2 (g) How many kJ of heat are released when 24.0 g of carbon are burned in an excess of oxygen

  11. Plz help me.

    Which of the following explains why your body may contain a carbon atom that was present in George Washington’s body in 1776? (1 point) Carbon moves in a one-way direction through living organisms only. Carbon moves in a one-way direction from the

  12. chemistry

    When carbon is burned in air, it reacts with oxygen to form carbon dioxide. When 24.0 of carbon were burned in the presence of 76.8 of oxygen, 12.8 of oxygen remained unreacted. What mass of carbon dioxide was produced?

  13. chem

    The burning of 18.0 g of carbon produces 55.0 g of carbon dioxide. What is the theoretical yield of CO2? Calculate the percent yield of CO2.

  14. science

    3. How would the carbon cycle be affected if all producers were removed? (1 point) Carbon compounds in animals would not be broken down to release carbon dioxide back into the atmosphere. Carbon would not have a way to enter the bodies of living things.

  15. Science

    The concentration of carbon dioxide is higher outside a plant leaf than inside a plant leaf. What will happen? Select one: a. Carbon dioxide diffuses away from the plant b. Carbon dioxide concentrations do not change c. Carbon dioxide diffuses into the

  16. Biology

    Living Things and the Carbon Cycle Quick Check: The ocean stores carbon from its interactions with the atmosphere, so the ocean serves as (a) _________ for the carbon cycle. carbon flux carbon sink *** carbon dioxide carbon source Where does cellular

  17. biology

    Which statements accurately describe the electron transport chain? Select all that apply. a: It produces carbon dioxide. b: It produces oxygen. c: It produces water and a high amount of ATP. d: It uses electrons released from NADH and FADH2.

  18. Chemistry

    When carbon is burned in air, it reacts with oxygen to form carbon dioxide. When 26.4 g of carbon were burned in the presence of 82.1 g of oxygen, 11.7 g of oxygen remained unreacted. What mass of carbon dioxide was produced? Express your answer to one

  19. chemistry

    When carbon is burned in air, it reacts with oxygen to form carbon dioxide. When 25.2g of carbon were burned in the presence of 78.0g of oxygen, 10.8g of oxygen remained unreacted. What mass of carbon dioxide was produced?

  20. chemistry

    A piece of dry ice (solid carbon dioxide) with a mass of 5.40 g is placed in a 10.0 L vessel? that already contains air at 715 torr and 25 degrees C. After the carbon dioxide has totally vaporized, what is the partial pressure of the carbon dioxide and the

  21. science

    Which of the following gives off more energy than it absorbs? melting ice, burning propane in a gas heater, sublimation of carbon dioxide to carbon dioxide gas, recharging a car battery

  22. Biology B Modeling the Carbon Cycle Answers

    Biology B Modeling the Carbon Cycle Answers 1. What happens to carbon in plants when the plants die? Answer - The carbon is released into the soil for use by the next generation. 2. Which are all the correct products of respiration? Answer - carbon

  23. chem

    A piece of solid carbon dioxide, with a mass of 6.2 g, is placed in a 4.0 L otherwise empty container at 21°C. ( a) What is the pressure in the container after all the carbon dioxide vaporizes? atm (.86 atm) (b) If 6.2 g solid carbon dioxide were placed

  24. Chemistry

    In the lab, students decomposed a sample of calcium carbonate by heating it over a Bunsen burner and collected carbon dioxide according to the following equation: CaCO3(s) --- > CaO(s) + CO2(g) (a) How many mL of carbon dioxide gas were generated by the

  25. Biology

    Indicate if the organisms below are either a photoautotroph, a heterotroph, or a chemoautotroph. 1. A bacterium that uses inorganic H2S as a reducing agent to synthesize carbohydrates from carbon dioxide: 2. A bacterium that can metabolize maltose or

  26. Chemistry

    Methanol burns in oxygen to make carbon dioxide and water. The equation is exothermic, with 1452kJ/mol. of energy being released. (a)Write a balanced equation for the combustion of methanol. -methanol+oxygen=carbon dioxide+water -CH3OH+O2=CO2+H2O (how do

  27. science(please check answers)

    1.which of the following were found to destroy ozone in the upper atmosphere? A. sulfur oxides B. cfcs(i pick this) C. nitrogen oxides D. carbon dioxide 2.which of the following sets of terms is associated with air pollution caused by burning fossil fuels?

  28. science( Please Check My Answer)

    Question: One of the largest cypress trees in Florida has a tree trunk diameter of about 3.5 m. What is the source of MOST of the carbon in the cypress tree's trunk? Answer choices: A. The tree created carbon during photosynthesis. B. The tree used carbon

  29. SCIENCE

    Scientists exposed plants to radioactive oxygen in different forms to observe how plants recycle oxygen during photosynthesis. Which conclusion would their observations support? (1 point) Carbon dioxide and water are recycled into glucose and oxygen gas.

  30. Science/Geology

    In living things, what is the source of the carbon-14 that is used in radiocarbon dating? A. Carbon dioxide in rocks B. Carbonic acid in caves C. Carbon dioxide in the atmosphere D. Carbon dioxide in water

  31. Chemistry

    Combustion of a 0.1595 g of menthol (156 g/mol) produces .449 g of Carbon Dioxide and 0.184 g of Water. What is the formula of menthol? I am really confused as to where to start. I converted the Carbon Dioxide and Water to moles and got .102 mol for both

  32. Chemistry. Plz Help!

    When carbon is burned in air, it reacts with oxygen to form carbon dioxide. When 20.4 g of carbon were burned in the presence of 71.1 g of oxygen, 16.7 g of oxygen remained unreacted. What mass of carbon dioxide was produced? Express your answer to three

  33. Chemistry

    A sample of calcium carbonate that has a mass of 1.0 g is heated and completely decomposed-calculate. a) the mass of carbon dioxide produced b)the volume of carbon dioxide at SLC c)the volume of carbon dioxide at STP

  34. Chem

    which substance cannot be decomposed by a chemical change? carbon dioxide, methane, carbon monoxide, or carbon

  35. CHEM

    1. How many moles of water can be made from 4 moles of oxygen gas and 16 moles of hydrogen gas? What is the limiting reagent? 2. Calculate the mass of water produced from the reaction of 24.0 g of H2 and 160.0 g of O2. What is the limiting reagent? 3. The

  36. Chemistry 108

    Classify each of the following as an element or compound and explain your classification. A. Carbon dioxide (The gas we breathe out) B. Xenon (A guess sometimes used as an anesthetic) Solution A. Carbon dioxide is a compound. From its name, you can tell

  37. thermodynamics (dont know what to do)

    0.05 kg of carbon dioxide (molecular weight = 44) is compressed from 1 bar, 15°C, until the pressure is 8.3 bar, and the volume is then 0.004 m3. Calculate the change of entropy. Take cp for carbon dioxide as 1.0 kJ/kg K, and assume carbon dioxide to be a

  38. Chemistry

    When carbon is burned in air, it reacts with oxygen to form carbon dioxide. When 13.2 g of carbon were burned in the presence of 48.8 g of oxygen, 13.6 g of oxygen remained unreacted. What mass of carbon dioxide was produced? Express your answer to one

  39. Science

    Which provides evidence that humans are causing an increase in the carbon dioxide concentration in the atmosphere? The net flux of carbon into the atmosphere without including the contribution from burning fossil fuels is negative. The net flux of carbon

  40. chem

    When carbon is burned in air, it reacts with oxygen to form carbon dioxide. When 24.0 g of carbon were burned in the presence of 79.5 g of oxygen, 15.5 g of oxygen remained unreacted. What mass of carbon dioxide was produced

  41. Chemistry

    The burning if 18.0 g of carbon produces 55.0 g of carbon dioxide. What is the theoretical yield of CO2? Calculate the percent yield of CO2.

  42. #2 chemistry

    2CO(g) + O2(g) ==> 2CO2(g) A. If 16.01 L of oxygen is reacted at STP, how many moles of carbon dioxide is produced? B. If 1.722 mol of carbon monoxide is reacted at STP, what volume of carbon dioxide is produced? C. At STP, what volume of oxygen is needed

  43. Biology B Unit 2 Lesson 3 Living Things and the...

    Biology B Unit 2 Lesson 3 Living Things and the Carbon Cycle 1. The ocean stores carbon from its interactions with the atmosphere, so the ocean serves as (a) _________ for the carbon cycle. Answer - Carbon Sink 2. Where does cellular respiration occur?

  44. Physics

    a diatomic molecule of oxygen traveling at 330m/s collides head on with a carbon dioxide molecule going 270m/s. The oxygen molecule bounces off the carbon dioxide molecule in the opposite direction going 365m/s. What is the speed and direction of the

  45. Chemistry

    Just having some trouble with this chemistry problem.. Thanks for help! Toxic carbon monoxide (CO) gas is produced when fossil fuels such as petroleum burn without enough oxygen. The CO can eventually be converted to CO2 in the atmosphere. Automobile

  46. math: pre-calculus

    If current rates of deforestation and fossil fuel consumption continue, then the amount of atmospheric carbon dioxide in parts per million (ppm) will be given by f(x)=375e^0.00609c, where c=0 corresponds to 2000. a)What is the amount of carbon dioxide in

  47. chemistry

    In a hydrocarbon-based combustion reaction, what two molecules are most likely to be products? A. carbon dioxide and water B. sulfur dioxide and zinc oxide C. sulfur dioxide and cyclopentane D. carbon monoxide and hydroxide

  48. scrence

    Darnell produces carbon dioxide (CO2) in the lab using the reaction represented by the equation. C + O2 → CO2 The table shows the masses of carbon (C) and oxygen (O2) that Darnell uses in the reaction. Substances Mass (g) carbon (C) 12 oxygen (O2) 32

  49. SCIENCE

    The burning of fossil fuels cause the earth to get warmer by putting carbon dioxide in the atmosphere and the carbon dioxide traps heat. MY GUESS: TRUE

  50. can you help me with one science question Ms. Sue

    3. How would the carbon cycle be affected if all producers were removed? (1 point) Carbon compounds in animals would not be broken down to release carbon dioxide back into the atmosphere. Carbon would not have a way to enter the bodies of living things.

  51. chemistry

    The combustion of ethane produces carbon dioxide and water. If 27.6 g C2H6 are burned in the presence of excess air (O2) and 76.7 g of carbon dioxide are produced, what is the percent yield?

  52. Math

    If current trends of burning fossil fuels and deforestation continue, then future amounts of atmospheric carbon dioxide in parts per million (ppm) will increase exponentially. In the year of 1990, there was 353 ppm. A)In the year of 2000, there was 375 ppm

  53. Chemistry

    A piece of solid carbon dioxide, with a mass of 6.8 g, is placed in a 4.0 L otherwise empty container at 23°C. a) What is the pressure in the container after all the carbon dioxide vaporizes? b)If 6.8 g solid carbon dioxide were placed in the same

  54. Earth Science

    I'm currently doing a test and I really need some help Which provides evidence that humans are causing an increase in the carbon dioxide concentration in the atmosphere? A. The net flux of carbon out of the atmosphere without including the contribution

  55. Chemistry

    a. If 5.57 g of glucose are produced through photosynthesis, what is the minimum number of moles of carbon dioxide and of water that were used? b. If the 5.57 g of glucose is an 80.2% yield, and assuming that carbon dioxide was the limiting reagent, how

  56. science

    Krebs Circle produces A)NADH and Carbon Dioxide B)ADP and NADP C)Acytol CoA and sugars D)Water and Carbon Dioxide

  57. biology- photosynthesis

    There is a distinct oscillation of CO2 during each year as CO2 is added to the atmosphere each winter or removed from the atmosphere each summer. Explain what specific cellular processes lead to these changes in CO2 level. You must explain what causes CO2

  58. chemistry help

    When carbon dioxide and carbon react the balanced equation is Co2+C--------------2Cq Calculate the mass of carbon monoxide formed from 4.4g of carbon dioxide

  59. Chem URGENT!!

    Which bond is most polar? F-Cl O-P O-S F-F Si-O Which species has the shortest carbon/oxygen bond? carbon monoxide carbon dioxide carbonate anion all carbon/oxygen bonds have same length Plz Help me with this....I need to see if I answered it right I put

  60. chem

    Liquid carbon disulfide reacts with 415 mL of oxygen to produce the gases carbon dioxide and sulfur dioxide. What volume of carbon dioxide is produced? Answer in units of L

  61. chem

    The problem is :2.8 grams of ethene burns in oxygen to form carbon dioxide and water Calculate a)the number of moles in 2.8g of ethene b)the number of carbon dioxide(mole ratio) dioxide formed c)the mass of carbon dioxide formed D)the volume of carbon

  62. chemistry

    A piece of solid carbon dioxide, with a mass of 7.4 g, is placed in a 4.0-L otherwise empty container at 27°C. (a) What is the pressure in the container after all the carbon dioxide vaporizes? 1.0atm (b) If 7.4 g solid carbon dioxide were placed in the

  63. chemistry

    What will be the final temperature of 650 g of water initially at 5.5°C if it is heated by burning 7.5 g of carbon to carbon dioxide. The molar heat of reaction is -393.5 kJ/mol. I do not understand how to do this question

  64. Math

    Cosmic ray bombardment of the atmosphere produces neutrons, which in turn react w/ nitrogen to produce radioactive carbon-14. Radioactive carbon-14 enters all living tissue through carbon dioxide. As long as it is alive, carbon-14 is maintained in the

  65. Chemistry

    carbon dioxide (CO2) is the gas mainly responsible for global warming (the greenhouse effect). the burning of fossil fuels is a major cause of the increased concentration of CO2 in the atmosphere. carbon dioxide is also the end product of metabolism. a

  66. Chemistry

    In the production of carbon disulfide (CS2), carbon (C) and sulfur dioxide (SO2) are reacted. If 8.00 g of sulfur dioxide reacts, how many moles of carbon dioxide are produced?

  67. chemistry

    THE QUESTION ASKS TO CALCULATE THE AMOUNT (IN GRAMS) OF CARBON DIOXIDE FROM THE AMOUNT OF SODIUM BICARBONATE THAT YOU USED IN THE REACTION Run 1. The reaction of citric acid and sodium bicarbonate is written as H3C6H5O7(aq) + 3 NaHCO3(aq) → Na3C6H5O7(aq)

  68. Chemistry

    When carbon is burned in air, it reacts with oxygen to form carbon dioxide. When 25.2 of carbon were burned in the presence of 80.6 of oxygen, 13.4 of oxygen remained unreacted. What mass of carbon dioxide was produced?

  69. chemistry

    When carbon is burned in air, it reacts with oxygen to form carbon dioxide. When 25.2 g of carbon were burned in the presence of 84.5 g of oxygen, 17.3 g of oxygen remained unreacted. What mass of carbon dioxide was produced

  70. Chemistry

    Ik this has been answered, but doesn't the copper oxide have something to do with it? And could you explain it in simpler terms? I'm just confused because you said forget the copper oxide, but your using it somehow, what puzzles me is the carbon dioxide,

  71. Chemistry

    A mixture of powdered carbon and an oxide of lead was heated producing lead metal and carbon dioxide.when 13.70g of the lead oxide was reduced to lead by carbon,960cm^3 of carbon dioxide measured at r.t.p was formed. Calculate the empirical formular of the

  72. Chemistry and Science

    carbon dioxide is a "greenhouse" gas in that it absorbs energy from the sun, causing heating of the atmosphere and eventually global warming. carbon dioxide is produced from the combustion of carbon-containing fuels such as coal (mainly carbon), natural

  73. Chemistry

    I'm having a bit of trouble translating what I see when I perform the experiment into actual chemical reactions. In one experiment, Magnesium is placed in Hydrochloric acid, and a burning splint is extinguished. So I think that it is producing Magnesium

  74. Chem I

    Ok one more! Write the balanced equations and assign oxidation numbers to all atoms in these two reactions involving iron. If the effective oxidation number of any particular atom changes during the reaction then a redox reaction has occurred. If a redox

  75. Chemistry-stoichiometry ...help!

    Calculate the volume of carbon dioxide produced when 0.5 tonnes of iron are produced. When iron oxide is heated with carbon monoxide, pure iron and carbon dioxide are formed. Ans: 500000g/112g/mol= 13392.9L

  76. Chemistry

    A piece of solid carbon dioxide, with a mass of 6.8 g, is placed in a 4.0 L otherwise empty container at 23°C. a) What is the pressure in the container after all the carbon dioxide vaporizes? b)If 6.8 g solid carbon dioxide were placed in the same

  77. chemistry

    during the burning of coal: C + O2 = CO2 if 12g of carbon is burnt in plenty of oxygen,what mass of carbon dioxide is produced

  78. chemistry

    assume that 0.50 L of carbon dioxide is required for a loaf of bread. what mass of glucose must be broken down by yeast to produce this volume of carbon dioxide? (density of carbon dioxide at baking temp. is 1.25 g/L.

  79. English

    Of the following sentences, which is a run-on sentence? a. Carbon dioxide is, in turn, excreted by plants and it is produced by a variety of human activities, such as the burning of hydrocarbon fuels. b. Along with carbon dioxide, water vapor and other

  80. chemistry

    The amount of carbon which when completely burnt in air,produces 100gram of carbon dioxide by weight is

  81. Mantaqui

    The amount of carbon which when completely burnt in air,produces 100gram of carbon dioxide by weight is

  82. English

    The burning of trees adds carbon dioxide to the air OR the burning of trees add carbon dioxide to the air?

  83. chemistry

    a carbon containing 3 atoms of carbon and 8 atoms of hydrdren combinend in reactionwith oxygen molecules the 2 end products of this equation are carbon dioxide co 2 an water what element should i look at first inn this oxygen hydrogen carbon or dioxide and

  84. Clark Atlanta

    Plants need carbon dioxide to produce energy. How many carbon are there in 10.0 g of carbon dioxide? this is what I have so far. 10.0g x 1mol/44.01CO2 = 227 mol CO2

  85. Chemistry

    A sample of .234g of carbon is placed in a closed stainless steel bomb with .502g of of oxygen gas. The mixture is ignited giving of carbon dioxide. How many grams of carbon dioxide should be obtained upon combustion?

  86. Shelled marine organisms

    How do the shelled marine organisms contribute to the carbon cycle? They contribute to the carbon cycle by releasing carbon dioxide back into the atmosphere by converting carbohydrates and oxygen into carbon dioxide and water.

  87. chemistry, please help!!

    The combusion of glucose produces carbon dioxide and water vapor according to the chemical equation below: C6H12O6 (s) + 6O2 (g) ---> 6CO2 (g) + 6H2O (g) DELTA H = -2540 kj Calculate the energ involved in making 75.0 g of glucose from carbon dioxide and

  88. Chemistry

    When carbon is burned in air, it reacts with oxygen to form carbon dioxide. When 20.4 g of carbon were burned in the presence of 71.1 g of oxygen, 16.7 g of oxygen remained unreacted. What mass of carbon dioxide was produced? Express your answer to three

  89. Chemistry

    1. Hydrogen gas combines with oxygen gas to yield water. if 15 g O2 is present in the reaction, compute how much water will be produced. 2. Ten (10)grams methane gas combines with oxygen gas to form water and carbon dioxide. How much water is produced from

  90. chemistry

    When carbon is burned in air, it reacts with oxygen to form carbon dioxide. When 14.4 g of carbon were burned in the presence of 55.2 g of oxygen, 16.8 g of oxygen remained unreacted. What mass of carbon dioxide was produced?

  91. chemistry

    a compound containing 3 atoms of carbon and 8 atoms ofhydrgen is combined in a reaction with oxegyn molecules the two end products of this equation are carbon dioxide co 2 and water what elemement should i look at first in balancing this equation oxygen

  92. Chemistry

    Calulate the volume of carbon dioxide produced when 0.5 tonnes of iron are produce.When iron oxide is heated with carbon monoxide, pure iron and carbon dioxide are formed.

  93. chemistry

    If 20 L of O2 burns completely a sample of carbon disulfide, how many liters of carbon dioxide are produced, how many liters of carbon dioxide are required?

  94. Chemistry

    In the International Space Station (ISS), the carbon dioxide that the crew exhales is removed from the air by a reaction within canisters of lithium hydroxide. On average, each astronaut exhales 20.0 mol of carbon dioxide daily. What mass of lithium

  95. chem

    well it saids: A 1.50L rubber balloon is filled with carbon dioxide gas at a temperature of 0.00C and a pressure of 1.00 atm. the density of the carbon dioxide gas under these conditions is 1.98g/L. a)at 50.0C the balloon ha a vlomue of 1.78L. Calculate

  96. Chemistry

    Complete combustion of a sample of propane produced 2.641g of carbon dioxide and 1.442g of water as the only products. Find the empirical formula of propane. I have already calculated the number of moles for both water and carbon dioxide. I also know that

  97. Chemistry-stoichiometry ...help!

    Calculate the volume of carbon dioxide produced when 0.5 tonnes of iron are produced. When iron oxide is heated with carbon monoxide, pure iron and carbon dioxide are formed. Ans: 500000g/112g/mol= 13392.9L

  98. Science

    If I have radiolabeled Carbon and I put it in Carbon Dioxide in a greenhouse, where will the carbon go? Where will it end up?

  99. science

    1, how much energy is needed to run a 40 watt light for 2 hours. 2. how you can tell coal is a more concentrated store of chemical energy than wood is. 3.why is it that the natural realese of carbon from decaying plant and animal material dose not cause

  100. chemistry

    If 20 L of O2 burns completely a sample of carbon disulfide, how many liters of carbon dioxide are produced, how many liters of carbon dioxide are required? How did you get 16?

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