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First you need to write a balanced chemical equation: 2KClO3 ----- 2KCl + 3 O2 Now if you have 45.8g of KClO3.. How many moles of KClO3 do you have? The molar mass of KClO3 is 122.55 g/mol. Therefore there are 45.8g/122.55g = 0.37372501 moles. Now use molar ratios to find the moles of O2: 0.373 mol/2 = xmols / 3 x mols = 0.560587515 moles of O2.
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Info: KCLO3(s) might be an improperly capitalized: KClO3(s) Info: KCL(s) might be an improperly capitalized: KCl(s) Les instructions et les exemples ci-dessous peuvent aider à résoudre ce problème Vous pouvez toujours demander de l'aide dans le forum
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KClO3 = KCl O2 | Phương trình hoá học. Nhiệt độ: nhiệt độ Xúc tác: MnO2. Cách thực hiện phản ứng. nhiệt phân KClO3. Hiện tượng nhận biết.
KCl Mass: g. O2 Mass: g. or Gas Volume: L. Heat Released: kJ.
17.The reaction 2 H2O ® 2 H2(g) + O2(g) is forced to occur by use of an externally applied electric current. This procedure is called A)in the wire B)at the anode C)at the cathode D)at the salt bridge E)in solution 18.Electroplating always takes place A)2 H2O() ® 2 H2(g) + O2(g) B)2 HgO(s) ® 2 Hg() + O2(g) C)2 KClO3() ® 2 KCl(s) + 3 O2(g) O2 / CO2 c. O2 / H2O d. C4H10 / CO2 e. C4H10 / H2O 2. Given the following equation: 2 KClO3 ---> 2 KCl + 3 O2 How many moles of O2 can be produced by letting 12.00 moles of KClO3 react? 3. Given the following equation: 2 K + Cl2 ---> 2 KCl How many grams of KCl is produced from 2.50 g of K and excess Cl2. From 1.00 g of Cl2 and excess K? 4.
2 KClO3 -> KCL + 3O2 Molar weight of O2 = 32 grams/mole (so close it doesn't matter) 30 grams/32grams/mole = 0.9375 moles Molar weight of KCL = 39+35.5 = 74.5 grams/mole (Want more accuracy? In order to balance KNO3 = KNO2 + O2 you'll need to watch out for two things. First, be sure to count all of K, N, and O on each side of the chemical equati...
Choose the correct symbol for the type of reaction. Place that answer in the blank at the beginning of each equation and then balance each equation correctly. When 5.00 g of potassium chlorate is heated it decomposes according to the equation: ! 2KCl(l) + 3O 2(g) a) Calculate the theoretical yield of oxygen (this is just basic stoichiometry) 2KClO 3(s) Solved: 3 mol (O2) 2 mol (KClO3) 5.00 g (KClO3) 1.96 g (O2) 32.00 g/mol (O2) 122.55 g/mol (KClO3) x x Therefore, the theoretical yield of oxygen is A 2.35 g sample of KClO3 is reacted. How many mL of O2 gas is produced at a pressure of 740. mmHg and a temperature of 25 °C? 2KClO3(s) 2KCl(s) + 3O2(g) A) 722 mL B) 0.482 mL C) 482 mL D) 22.4 mL E) 60.7 m L
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Chain snaps and smashes through windshield jaw Mar 26, 2018 · Sol. 3. If 270.0 g of water is electrolysed during an experiment performed by miss abhilasha with 75% 5. The EMF of the following cell is 0.22 volt. current efficiency then Ag(s) |AgCl(s)|KCl(1M)|H+(1M)|H2(g) (1atm); Pt(s) (A) 168 L of O2 (g) will be evolved at anode at 1 atm & 273 K Which of the following will decrease the EMF of cell. Rounds and canons Unity smooth knockback
The KClO3 will react with the catalyst, and we know that it deteriorates to form not only KCl, but O2, and Oxygen is a gas. If the test tube is open, the gas will escape and adjust itself to the volume of the space provided, meaning escaping the test tube. May 18, 2019 · What volume of oxygen at s.t.p. will be obtained by the action of heat on 20 g KClO3 [K = 39, Cl = 35.5, O = 16] asked Feb 27, 2019 in Chemistry by Anjal ( 76.8k points) mole concept
Standard Heats and Free Energies of Formation and Absolute Entropies of Elements and Inorganic Compounds