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Calculate the concentration of permanganate when 1g of potassium permanganate is dissolved in 50ml of water.
A mixture of 0.160 moles of C is reacted with 0.117 moles of O2 in a sealed 10.0L vessel at 500.K, producing a mixture of CO and CO2. The total pressure is 0.640 atm. What is the partial pressure of CO? 3C + 2O2---> 2CO +CO2
Calculate how many moles and grams of aluminum chloride can be made from 2.70 g of aluminum and 4.05 of chlorine. find the mass of aluminum chloride 2Al(s)+3Cl3(g)---2Alcl3(s).
Titanium occurs in the magnetic mineral ilmenite (FeTiO3), which is often found mixed up with sand. The ilmenite can be separated from the sand with magnets
Calculate the approximate amount of unknown acid to use such that it would require about 15 mL of 0.05M NaOH to reach the endpoint.
a) Calculate the potential of the two cells. b) Write the overall balanced redox equations for the reactions above. c) Calculate ?G for the conditions given for reactions above.
Calculate the number of moles and the mass of sodium carbonate present in the mixture. (Formula weight of sodium carbonate is 106g/mol)
The variation of the atmospheric pressure p with altitude h is predicted by the barometric formula to be p = p0 e^(-h/H) where p0 is the pressure at sea level and H=RT/Mg with M the average molar mass of air and T the average temperature. Obtain t..
A sample of cadmium with mass 2.248g is dissolved in 3.00M HCl. What volume of HCl is required to dissolve the Cd. (Cd dissolves in HCl to form Cd^2+)
The activation energy for the following reaction is 60. kJ/mol. Sn2+ + 2Co3+ → Sn4+ + 2Co2+
In a reaction 82.00 g of sodium reacts with 74.00g of ferric oxide to form sodium oxide and iron metal. calculate the mass of solid iron produced
James needs a 0.600 M solution of KCL. He measures out 0.600 g of KCL and adds 1 L of water to the solid.
if a man stands on a scale while totally submerged in water at 30 degrees c specific gravity.996 and the scale reads
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