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What volume of O2 collected at 22.0 C and 728 mm Hg would be produced by the decomposition of 8.15 g KClO3?
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∙ 12y ago
2.52 L
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∙ 12y ago
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Write the decomposition of H2CO3 and KClO3?
2KClO3(s)->2KCl(s)+3O2(g)
How many atoms are in a sample of 1.83 moles of potassium (K) atoms?
Okay, a mole of potassium perchlorate contains 6.02x1023 formula units of potassium perchlorate, but you're asking about individual atoms. So, let's look at the formula: KClO3. That's 1 potassium, 1 chlorine, and 3 oxygens, for a total of 5 atoms per formula unit. Now, multiple 5 by Avogadro's number above, to get 30.1x1023, which simplifies to 3.01x1024 atoms.
What element burns white?
http://answers.yahoo.com/question/index?qid=1006051223038 heh. It's a bad day when ya google a thing and get a yahoo answer... "Are you refering to photoluminescence? Copper compounds such as Copper Chloride or Copper Carbonate are generally used to create a blue flame. Ex. See the effects of CuSO4 upon a KClO3 + sucorse combustion," -mrjeffy There's more. I only searched after the Jules Verne re-entry vids. Lot's o' burning blue. Especially for the more violent moments of the ship's non-landing. ^o^
Which compounds are used in laboratory prepration of oxygen gas?
Lab preparation of oxygenTo prepare oxygen; you would need the following apparatus:1.Test tubes2.Manganese (IV) dioxide (MnO2)3. Hydrogen peroxide (it must be fresh and kept away from light)(H2O2)4. Wooden splinter (only needed if you are going to check how oxygen helps in combustion).5.Candle and matchsticks.Method:1.First, take the test tube and put a little bit of MnO2 (Manganese dioxide)2. At this time, you will need a friend's or someone else's help (only if you are requiring it to check how oxygen helps in combustion). First, tell your friend to light the candle and to ignite the splinter using the candle. At that time, take a small amount of hydrogen peroxide in a beaker or test tube. Then, tell him/her to to bring the wooden splinter close to the test tube. As soon as he/she brings it, put a little bit of hydrogen peroxide (not more than 1ml). You should see the reaction forming a gas, which looks like smoke. This gas is Oxygen.3. What happens to the splinter when you bring it close to Oxygen? Of course!The splinter burns more brightly and intensely.4. Should you want to only collect Oxygen, you need not do the second part of the second step.Precautions:1. Do not drop the test tubes.2. Always wear gloves while performing chemical experiments.3. Always wear lab coats while doing the same.4. Do NOT eat or manganese oxide or rub them on your eyes. Serious problems may occur, which even might result in blindness or death.5. Do NOT put warmed hydrogen peroxide on your skin. You might get a boil.6. Never stand too close to the test tube.7. If you are untrained, always seek for someone who is better at you in performing lab experiments, or anyone who already has done the lab preparation of Oxygen.8. Keep H2O2 and MnO2 away from children.9. If Oxygen gets into your eyes and you get an irritation, wash your eyes with cold water immediately.I am sure this helped! Good luck in becoming a RAD scientist!
How many moles of KClO3 on decomposition give 1 mole of oxygen?
2 grams of Oxygen can be obtained from 5 grams of KClO3 (only if the "CL" means "Cl", which is Chlorine! Remember that only the first letter of the atomic symbol is capitalized.)
Write the decomposition of H2CO3 and KClO3?
2KClO3(s)->2KCl(s)+3O2(g)
What type of reaction is KCLO3 KCL plus 02?
This is a decomposition reaction. {Note that the letters "L" in the given question should be lower case "l" instead. Also, the equation as given, assuming an arrow after "KCLO3", is unbalanced.}
A How many moles of O2 were produced b What percent of the mixture was KClO3 and KCl?
A 1.80-gram mixture of potassium chlorate, kclo3, and potassium chloride, kcl, was heated until all of the kclo3 had decomposed the liberated oxygen, after drying, occupied 405 ml at 25C when the barometric pressure was 745 torr. This is the problem and the questions were... a. How many moles of O2 were produced? b. What percent of the mixture was KClO3? KCl? Please help!!
How many milliliters of O2 will form a STP from 55.2 grams of KCLO3?
I assume you mean the decomposition reaction used to produce O2 in lab. 2KCLO3 -> 2KCl + 3O2 find moles O2 55.2 grams KClO3 (1 mole KCLO3/122.55 grams)(3 mole O2/2 mole KClO3) = 0.67564 moles O2 Now, I use the ideal gas law PV = nRT (1 atm)(V) = (0.67564 mol)(0.08206 L*atm/mol*K)(298.15 K) Volume O2 = 16.53 Liters which is 16530 milliliters ( less significant figures )
How many moles of oxygen are produced from twelve moles of potassium chlorate?
12 moles KClO3 (3 moles O/1 mole KClO3) = 36 moles of oxygen.
When 46.0 g KClO3 is heated 12.1 g O2 is formed how many grams of KCl is also formed?
The equation that describes this process is as follows: 2KClO3 ---> 2KCl + 3O2 For every 2 moles of reactants consumed 3 moles of oxygen gas are produced. 3 mol O2 / 2 mol KClO3 = x mol O2 / 12.3 mol KClO3 x = 12.3 mol x 3 mol / 2 mol = 18.45 mol Therefore, 18.5 mol (3 significant figures) of oxygen are produced by the decomposition of 12.3 mol of potassium chlorate
Why does oxygen gas yield from any compound which decomposes?
This isn't true. Only a few compounds, such as hydrogen peroxide (H2O2) and potassium chlorate (KClO3) yield oxygen upon decomposition.
What volume of O2 will produce when g of KClO3 is heated at NTP?
3 moles of oxygen are obtained from 2 moles of potassium chlorate.M of KClO3 is 122,55 g, M of O2 is 32, density of oxygen is 1,429 g/L.
How many moles of oxygen are produced when 7.5 moles of potassium chlorate decompose completely?
2 KClO3 ----> 2KCl + 3O2 So 2 moles of Potassium Chlorate produces 3 moles of oxygen molecules or 6 moles of oxygen atoms. 3 moles of Potassium chlorate would thus produce 4.5 moles of oxygen molecules or 9 moles of oxygen atoms.
What is the formula for potassium chlorate?
The formula for potassium chlorate is KClO3.
What kind recation is 2KClO3 2KCl 3O2?
KClO3 - KCl + O2
