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Use this data for the questions...-Mass of tube + MnO2 = 21.5403g-Mass of tube + MnO2 + KClO3 + KCl = 22.5518g-Constant mass of test tube + reaction product = 22.3514g
Questions:1. What is mass of O2 released? (0.2004g)2. How many moles of O2 were released? (.0063g)3. How many moles of KClO3 required by the moles of O2 released? (2 moles)4. What is the mass of KClO3 required? (245.099g)5. What is the mass of KClO3 & KCl mixture? (.0115g)6. What is the percent of KClO3 in KClO3 & KCl mixture?7. If there was 0.5011g of KClO3 in the original mixture, what is the true percent of KClO3?
What would the theoretical yield in moles be and how would you calculate that? What would the theoretical yield in grams be and how would you calculate that?
The activation energy of a certain reaction is 50.0 . At 22 , the rate constant is . At what temperature in degrees Celsius
What types of crystals are formed by the following solid elements and compounds: BF3 BN (NH4)CO3? In each case, state the types of forces among the particles
How much heat is absorbed in the complete reaction of 3.00 grams of SiO2 with excess carbon in the reaction below? Change in H degrees for the reaction is +624.6 kJ. SiO2 (g) + 3C (s) -> SiC (s) + 2CO (g)
A 2.00 liter vessel is ?lled with NH3(g) to a pressure of 4.00 atm and the reaction N2(g) + 3 H2(g) ?? 2 NH3(g) comes to equilibrium at a ?xed temperature.
Show that there are 1.0 X 10^22 (10 to the 22nd power) carbon atoms in a 1-carat pure diamond that has a mass of 0.20 g.
2.00 L of H2 at a pressure of 398 torr and 1.00 L of N2 at an unknown pressure. If the total pressure in the flasks is 331 torr after the stopcock is opened,
You are asked to prepare a buffer with a pH of 9.8. Calculate the volumes of .1 M solutions of NH4Cl and NH3 needed to produce 200mL of the buffer
How many grams of hydrogen chloride can be produced from 350 grams of sodium chloride and 290 grams of hyroden sulfate if the reaction has a yield of 88%?
Kp for the reaction of SO2(g) with O2 to produce SO3(g) is 3 × 1024 . Calculate Kc for this equilibrium at 25ºC. (The relevant reaction is 2SO2(g) + O2(g) 2SO3(g).)
You are given some reactions as a. Cl2(aq) + 2NaI(aq)= I2(aq) + 2 NaCl(aq), b. Br2(l) + 2K(S)=2KBr(s), c. Pbs( s) + 4H2O2(aq)= PbSO4(s) + 4H2O(l) you just need to Indicate which element is reduced and which is oxidized in the given equations?
If a gas occupies 625 mL at 0 Celsius and 760 torr pressure, what will its volume be at 373 degree C and 1520 torr pressure? How would you describe how to separate a mixture of oil, sand, and saltwater.
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