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Hydrogen sulfide, H2S, is a weak diprotic acid. Calculate the sulfide ion concentration in a saturated solution of hydrogen sulfide with a pH of 0.85. Assume that [H2S]=0.10 mol/L in a saturated solution. Write the overall, balanced net ionic equation for the ionization of hydrogen sulfide
When some ionic compounds dissolve, not all of their bonds dissociate. What kind of conductivity would you expect such a solution to have?
If 29.10 mL of a 0.145 M nitric acid is required to neutralize 50.00 mL of barium hydroxide solution, what is the molar concentration of the base?
Draw a six-carbon alkyne that can exist as diastereomers. The molecule should contain only carbon and hydrogen atoms.
The equilibrium system H2 + I2 ? 2HI has equilibrium constant K = 6.2. Starting from the nonequilibrium state [H2] = 0.3 M, [I2] = 0.5 M, and [HI] = 0.7 M, what are the concentrations of the three molecules when equilibrium is established
Assuming the volumes of all gases in the reaction are measured at the same temperature and pressure, calculate the volume of water vapor obtainable by the explosive reaction of a mixture of 725 mL of hydrogen gas and 325 mL of oxygen gas.
What is the percent-yield of H2 in the reaction below when an equimolar mixture of CH4 and CO2 with an initial total pressure of 20.0 atm reaches equilibrium at 1200. K, at which Kp = 3.548 x 106
1 calculate the final temperature of 63 ml of ethanol initially at 11 degc upon absorption of 527 j of heat. density of
What is the molarity (M) of a solution that contains 2.08 grams of NaOH (MM = 40.00 g/mol) in 79.65 mL of solution.
Analysis of the products revealed two methylated sugars: 2,3,6-tri-O-methyl-D-glucose, 2,4-di-O-methyl-D-glucose and 2,3,4,6-tetra-O-methyl-D-glucose. The ratio of these sugars was 20:1:1. determine the structure of the polysaccharide?
Na2CO3+H3PO4=Na3PO4+H2O+CO2 find the limiting reagent if you strat with 450ml if 2.6M NA2CO3 and 88 grams of H3PO4, what is the maximum amount of grams you can make of Na3PO4? how many grams of the other starting martial is left over
How many liters of water vapor can be produced if 13.3 liters of methane gas (CH4) are combusted, if all measurements are taken at the same temperature and pressure?
The standard enthalpy of formation of the metallocene bis(benzene)chromium was measured in a calorimeter. It was found for the reaction Cr(C6H6)2(s) → Cr(s) + 2 C6H6(g)
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