In an experiment 16.81 +/- 0.02 grams of hydrogen peroxide chemically decomposes into the products water and oxygen gas. The measured mass of oxygen gas produced in the reaction is 8.854 +/- 0.003 grams. Report the mass of water produced

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    1. Which statement is true about the following molecule? (1 point)The molecule is composed of four atoms.The molecule contains oxygen atoms.The molecule is water.The molecule represents an element. 2. A(n) _____________ is made up of two or more different

  2. CHE1

    Hydrogen peroxide decomposes to water and oxygen at constant pressure by the following reaction: 2H2O2(l) → 2H2O(l) + O2(g) ΔH = -196 kJ Calculate the value of q (kJ) in this exothermic reaction when 4.60 g of hydrogen peroxide decomposes at constant

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    The following reaction represents the decomposition of hydrogen peroxide: 2H2O2 -> O2 (g) + 2H2O (l) How many molecules of water are produced from the decomposition of 3.4g of hydrogen peroxide, H2O2? Please help, I got 0.02 molecules of water but need to

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    Household hydrogen peroxide is an aqueous solution containing 3.0% hydrogen peroxide by mass. What is the molarity of this solution? (Assume a density of 1.01g/ml .)

  6. Chemistry

    Determine the molarity of a 15.0 % by mass Hydrogen Peroxide solution. The density of Hydrogen Peroxide is 1.054 g/mL. The 15.0% by mass can be broken apart into 15.0 g Hydrogen Peroxide and 100.0 g solution. Use the density of Hydrogen Peroxide solution

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    The primary reaction catalyzed by catalase is the decomposition of hydrogen peroxide to form water and oxygen, which occurs spontaneously, but not at a very rapid rate. Write a balanced equation for this reaction. (Remember that catalase is not a reactant

  8. Chemistry

    I have .8ml of 35% by weight hydrogen peroxide. The hydrogen peroxide density is 1.14 g/ml. how many moles of hydrogen peroxide are there?

  9. chemistry-net ionic equations

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  10. Chemistry

    The following reaction represents the decomposition of hydrogen peroxide 2H2O2 -> o2 (g) + 2H2O (l) How many molecules of water are produced from the decomposition of 3.4g of Hydrogen peroxide, H2O2? Please walk me through this one, I need more then just

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    Redox titrations are used to determine the amounts of oxidizing and reducing agents in solution. For example, a solution of hydrogen peroxide, , can be titrated against a solution of potassium permanganate, . The following equation represents the reaction:

  12. Chemistry

    The density of hydrogen peroxide, H2O2, is 1.45 g/mL. How many molecules of H2O2 are in 0.350 L of hydrogen peroxide? The molar mass of H2O2 is 34.01 g/mol.

  13. Chemistry

    Consider the decomposition reaction of the following represented hydrogen peroxide: 2 H2O2 (aq) = 2 H2O + O2 In the experiment, the average speed of this reaction given time interval was 16 mol • s-¹ in relation to hydrogen peroxide. What is the average

  14. chem

    Oxygen gas and water are produced by the decomposition of hydrogen peroxide. If 10.0 mol of H2O2 decomposes, what volume of oxygen will be produced? Assume the density of oxygen is 1.429g/L. 2H2O2= 2H2O+O2

  15. chemistry

    how many grams of hydrogen peroxide (H2O2) must be added to 1500 ml of water to produce a concentration of 1.33 m (molal solution)

  16. chemistry

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  17. Chemistry

    Redox titrations are used to determine the amounts of oxidizing and reducing agents in solution. For example, a solution of hydrogen peroxide,H2O2, can be titrated against a solution of potassium permanganate, KMnO4. The following equation represents the

  18. Chemisty

    Based on equation: 2MnO4¬¬(-) + 6H(+) +5H2O2 → 2Mn(2+) +8H2O + 5O2 A 50.0 mL solution of hydrogen peroxide of unknown concentration was diluted with 1.00L of water. 25mL of this diluted solution was then titrated with acidified potassium permanganate;

  19. Chemistry

    Hydrogen Peroxide decomposes to produce oxygen gas and water, What mass of hydrogen peroxide (H2O2) nust decompose to produce 0.77 grams of water?

  20. CHEMISTRY

    The following reaction represents the decomposition of hydrogen peroxide: Balanced equation: 2H2O2 -> O2 + 2H2O How many moles of oxygen are produced from the decomposition of 3.4g of hydrogen peroxide? How many molecules of O2 are produced? For the second

  21. Chemistry

    Hydrogen peroxide(H2O2) slowly decomposes to form water and oxygen gas. Calculate the mass of Hydrogen peroxide needed to obtain 0.460L of oxygen gas at STP

  22. Chemistry

    Hydrogen peroxide decomposes into water and oxygen. What amount of hydrogen peroxide is necessary to produce 1 kg of oxygen

  23. Science

    Hydrogen peroxide, H2O2, is unstable under certain conditions and decomposes as follows: 2 H2O2 → 2 H2O + O2 ? g 34.00 g 15.98 g What mass of hydrogen peroxide, to the nearest hundredth of a gram, is decomposed in this reaction? Please help 😔

  24. science

    drogen peroxide, H2O2, is unstable under certain conditions and decomposes as follows: 2 H2O2 → 2 H2O + O2 ? g 34.00 g 15.98 g What mass of hydrogen peroxide, to the nearest hundredth of a gram, is decomposed in this reaction?

  25. Chemistry - Please help!

    Small quantites of hydrogen peroxide can be prepared by the action of an acid on an alkaline earth metal peroxide, such as barium peroxide. BaO2 (s) + 2HCl (aq) -> H2O2 (aq) + BaCl2 (aq) What mass of hydrogen peroxide should result when 15.0g of barium

  26. Chemistry

    What mass of hydrogen peroxide must decompose to produce 0.77 grams of water(H2O)?

  27. Science

    A sample of water decomposes to make 4g of hydrogen gas and 32g of oxygen gas. What mass of water decomposed? How do you know? Hint: The water decomposes into ONLY hydrogen and oxygen, and the total mass does not change in the process. It's called the Law

  28. Chemistry

    Oxygen gas and water are produced by the decomposition of hydrogen peroxide. If 10.0 mol of H2O2 decomposes, what volume of oxygen will be produced? Assume the density of oxygen is 1.429g/L. 2H2O2= 2H2O+O2

  29. Chemistry

    An antiseptic solution contains hydrogen peroxide,H2O2,in water. The solution is 0.600 m H2O2. What is the mole fraction of hydrogen peroxide?

  30. chemistry

    2mno4 - + 5h2o2 + 6h= 2mn 2+ + 5o2(gás) + 8h2o You must determine the percentage of hydrogen peroxide (H2O2) in a solution by permangan titration. In an acid solution, the permanganations will oxidize hydrogen peroxide to oxygen gas ......... You must

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  33. Chem

    In an experiment 16.81 +/- 0.02 grams of hydrogen peroxide chemically decomposes into the products water and oxygen gas. The measured mass of oxygen gas produced in the reaction is 8.854 +/- 0.003 grams. Report the mass of water produced to the correct

  34. Chem

    In an experiment 16.81 +/- 0.02 grams of hydrogen peroxide chemically decomposes into the products water and oxygen gas. The measured mass of oxygen gas produced in the reaction is 8.854 +/- 0.003 grams. Report the mass of water produced to the correct

  35. CHEM!!

    In an experiment 5.57 +/- 0.02 grams of water chemically decomposes into the products hydrogen gas and oxygen gas. The measured mass of oxygen gas produced in the reaction is 4.9320 +/- 0.0001 grams. The hydrogen gas occupies a volume of 6902 mL. Report

  36. Chem help?

    In an experiment 5.57 +/- 0.02 grams of water chemically decomposes into the products hydrogen gas and oxygen gas. The measured mass of oxygen gas produced in the reaction is 4.9320 +/- 0.0001 grams. The hydrogen gas occupies a volume of 6902 mL. Report

  37. chemistry

    Hydrogen peroxide decomposes according to the following thermochemical reaction H2O2 --> H2O +1/2 O2 ; H= -98.2 kJ calculate the change in enthalpy when 1.00 g of hydrogen peroxide decomposes.

  38. Chem

    Hydrogen peroxide decomposes according to the following: H2O2--> H2O(l) + 1/2O2(g); deltaH = -98.2kJ Calculate the change in enthalpy, deltaH, when 1.00g of Hydrogen peroxide decomposes

  39. chemistry HELP

    hydrogen peroxide (H2O2) decomposes into water and oxygen. what amount of hydrogen peroxide is necessary to produce 24g of oxygen.

  40. Chem

    You have 25.00 mL of 3% by mass solution of hydrogen peroxide. Assume the density of this solution is 1.00 g/mL. If all of the hydrogen peroxide decomposes to water and oxygen according to the reaction below: 2H2O2 (aq) 2H2O (l) + O2 (g) What is the total

  41. Math algebra

    David Robertson works as a chemical engineer for U.S. peroxide Corporation. David has 2500 gallons of commercial-grade hydrogen peroxide solution that is 60% pure hydrogen peroxide. How much distilled water(which is 0% hydrogen peroxide) will David need to

  42. Chemistry

    If i have 0.5 mole of hydrogen peroxide how many moles of oxygen would be produced assuming all of the hydrogen peroxide decomposes?

  43. Chemistry

    delta G reaction = delta G products - delta G reactants. Hydrogen peroxide is used as a bleachin agent, a disinfectant and medicinally as a topical antibacterial agent. Hydrogen peroxide decomposes according to the reacton 2H^2O^2(l)-->2H^2O(l)+o^2(g) A.

  44. Chemistry

    How to prepare 100mL of 3% w/w Hydrogen Peroxide from 30% w/w Hydrogen Peroxide?Specific Gravity of 30%w/w Hydrogen Peroxide is 1.11g/mL. Can you please show the calculation steps? Thanks.

  45. Chemistry

    Describe the formation of hydrogen bonds in a hydrogen peroxide, H2O2. Represent possible hydrogen bonding structures in hydrogen peroxide by using structural formulas and the conventional notation for a hydrogen bond.

  46. Chemistry

    Hydrogen peroxide is used as a bleachin agent, a disinfectant and medicinally as a topical antibacterial agent. Hydrogen peroxide decomposes according to the reacton 2H^2O^2(l)-->2H^2O(l)+o^2(g) A. Given the standard free energy of formation values shown

  47. Chemistry

    If a catalyst is introduced to ecxellaerate decomposition of Hydrogen Peroxide with the the aid of a condenser and another bottle theat is connectect to the first. This second bottle contains displaced water(bottle of water inverted to leaving an air

  48. Chemistry

    If a catalyst is introcuced to ecxellaerate decomposition of Hydrogen Peroxide with the the aid of a condenser and another bottle theat is connectect to the first. This second bottle contains displaced water(bottle of water inverted to leaving an air

  49. Science

    If 100 mL of hydrogen peroxide decomposes how many liters of O2 is formed

  50. Chemistry

    In a student's experiment, when 40 mL of 6% (w/w) hydrogen peroxide solution was reacted with 10 mL 0.5 M FeCl3 solution, a ΔrH of -3,382 J was calculated. Calculate ΔH for this reaction in kJ mol-1. Give your answer to 2 decimal places, do not include

  51. chemistry

    In the reaction of hydrogen peroxide with iron (II) ion in acidic solution to form iron (III) ion and water, the oxidizing agent is____ is it hydrogen peroxide? cus its not water right?

  52. college chemistry

    2h2o2(aq) ---> 2h2o(l) + o2(g) if someone puts 0.470 ml of hydrogen peroxide on a cut how many moles of hydrogen peroxide are used? Assume the density of the solution is equal to the density of water.

  53. science

    Most elements found in the human body are gases, but carbon is _______. When 2 oxygen_______bond chemically with 2 hydrogen the compound peroxide is formed.

  54. Chemistry

    This question is from grade 12 university preparation level. The answer has to do something with rates of chemical reactions but I don't know what the answer is. . When hydrogen peroxide H2O2 is used as an antiseptic on open wounds, bubbles form as a

  55. CHEMISTRY

    This question is from grade 12 university preparation level. The answer has to do something with rates of chemical reactions but I don't know what the answer is. . When hydrogen peroxide H2O2 is used as an antiseptic on open wounds, bubbles form as a

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  57. chemistry

    How many grams of hydrogen peroxide (H2O2) must be added to 1,500 mL of water to produce a concentration of 1.33 m (molal solution)?

  58. Chemistry

    How many grams of hydrogen peroxide (H2O2) must be added to 1,500 ml of water to produce a concentration of 1.33 m (molal solution)?

  59. chem

    In the reaction of hydrogen peroxide with iron (II) ion in acidic solution to form iron (III) ion and water, the oxidizing agent is____. Is it hydrogen peroxide?

  60. chemistry

    Hydrogen peroxide can be produced in the lab by reacting barium peroxide with hydrochloric acid. another product of the reaction is barium chloride. 1). what is the balanced chemical equation for the reaction? 2). what mass of hydrogen peroxide should

  61. chemistry

    Hello all (Damon if he is there) I need to make some Cupro CHLORIDE but it says I must use hcl, copper and hydrogen peroxide. I can't get hydrogen peroxide here in Malawi so does any one have a suggestion.many thanks David

  62. Science

    How many grams of hydrogen are produced from the decomposition of 100 grams of hydrogen peroxide? H2O2(l) → H2(g) + O2(g) a. 100 g H2 b. 50 g H2 c. 6 g H2 d. 1 g H2

  63. chemistry

    Solud iron and steam react at high temperatures to form iron(vi) peroxide and hydrogen gas. How much solid iron is needed to obtained 405 grams of iron(vi) peroxide, with a 84.2% yield?

  64. chemistry

    Solud iron and steam react at high temperatures to form iron(vi) peroxide and hydrogen gas. How much solid iron is needed to obtained 405 grams of iron(vi) peroxide, with a 84.2% yield?

  65. Chemistry

    Hydrogen peroxide solution, H2O2(aq), is available with a concentration of 1.667mol/L. When diluted to a concentration of 0.25mol/L, the solution is used as a disinfectant. What volume of water should be added to 100 mL of the concentrated hydrogen

  66. chemistry

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  67. chemistry

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    Commercial aqueous hydrogen peroxide was diluted 150 times. 25cm3 of the sample solution was titrated with 0.02molar KMnO4 and 26.3cm3 was required to reach the end point. Calculate the molar concentration of hydrogen peroxide

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    2MnO4-(aq) +5 H2O2 (aq) + 6H+(aq) -> 5 O2(g) + 2 (Mn2+(aq) = 8H2O (l) If a 25.00 ml sample of hydro peroxide required 25.25 ml of .353 M KMNo4 solution to react with all the hydrogen perozide what was the molarity of the hydrogen peroxide solution?

  70. chemistRY

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  71. chemistRY

    When you react hydrogen gas with nitrogen gas to form ammonia, How many grams of all species ( reactants and products) are left when you start with 140 grams of nitrogen and 40 grams of hydrogen?

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  75. uitm

    Household hydrogen peroxide is an aqueous solution containing 3.0% hydrogen peroxide by mass. What is the molarity of this solution? (Assume a density of 1.01 g/mL.)

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  79. chemistry

    How many grams of hydrogen peroxide must decompose to give 255 mi of oxygen gas at stp?

  80. chemistry

    How many grams of hydrogen peroxide must decompose to give 255 mi of oxygen gas at stp?

  81. Chemistry

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  82. Human biology Coursework

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  84. Biology

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    How much stock solution of hydrogen peroxide 8% will you need to make 320ml of hydrogen peroxide 2% solution? ____

  86. Pharmacy Math

    How much stock solution of hydrogen peroxide 8% will you need to make 320ml of hydrogen peroxide 2% solution? ____

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  88. Chem- follow up question

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  90. chemistry

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  91. chemistry

    What mass of hydrogen peroxide should result when 1.50g of barium peroxide is reacted with 25.0mL of 0.50 M hydrochloric acid?

  92. Chemistry 130

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    What amount of hydrogen peroxide should result when 1.21 g of barium peroxide is treated with 25.1 mL of hydrochloric acid solution containing 0.0289 g of HCl per mL?

  94. Chemistry

    If i have 0.5 mole of hydrogen peroxide how many moles of oxygen would be produced assuming all of the hydrogen peroxide decomposes?

  95. Safety of Tooth Bleaching

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  98. math,eng,phy,chem,bio,geography,economics

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  99. Chemistry! I need help quick! Thank you very much!

    2h2O2 + 2H2O ---> 2H2O + O2 If 50cmcube , 2.0 mole/dmcube of hydrogen peroxide is decomposed and volume of oxygen gas collected. How much hydrogen peroxide is decomposed?

  100. chemistry help

    Why is hydrogen peroxide very soluble in water?

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