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The reaction below can be used to prepare potassium permanganate (KMnO4), a powerful oxidizing agent. When the reaction is carried out with 58.34 g of CO2 and 325.8 g of K2MnO4 a total of 98.11 g of KMnO4 is produced. What is the percent yield of this reaction?
3K2MnO4(aq) + 2CO2(g) → 2KMnO4(aq) + 2K2CO3(aq) + MnO2(s)
A student mixes 50.0mL of 1.00M Ba(OH)2 with 79.9mL of .375M H2SO4. Calculate the pH of the mixed solution.
electrode composed of nickel in a 1.0 M nickel(II) ion solution and another electrode composed of silver in a 1.0 M silver ion solution, connected by a salt bridge. Calculate the standard potential for this cell at 25 °C.
Question- Part 1) Water can be made by combining gaseous O2 and H2. If you begin with 1.5 L of H2(g) at 360 Torr and 23°C, what volume in liters of O2(g) will you need for complete reaction if the O2(g) is also at 360 Torr and 23°C
how do you calculate the ph and poh of an aqueous ammonia solution that has an oh - concentration of 1.9 x 10 -3 ? what
Calculate the pH of a buffer that contains 0.060M ammonium chloride
What mass of helium was placed in balloon. What altitude does the balloon reach
Using the Moles of HCL and the mole ratio of the balance equation calculate the moles of NaHCO3 that reacted with the HCL
Rewrite the atomic cores in the space below. Place an electron pair between each flourine and sulur core. Write the lewis structure for SF2 in the box, distributing the remaining valence electrons so that all three atoms are in accordance with the ..
if 1.67l of oxygen reacts with hydrogen gas to produce liquid water how manny liters of hydrogen gas will be needed.
What is the pH of a solution that results when 0.010 mol of HNO3 is added to 500mL of a solution that is 0.10M in aqueous ammonia and 0.20M in ammonium nitrate. Assume no volume change and the Kb for NH3 =1.8*10^-5
SbCl3(s)+H2O(l) -> SbOCl(s)+2HCl(g) In this reaction what is the percentage of Cl in SbOCl and in 2HCl
what is the internal energy change of a gas gives off 312 of heat while being compress 862mL by a pressure of 1.64 bar. what are internal energy change in surrounding and universe for the process
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