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1. SO2 reacts with H2S as follows:
2H2S + SO2 → 3S + 2H2O
When 7.50 g of H2S reacts with 12.75 g of SO2, which is the limiting reagent and what is theoretical yield?
2. Write the complete ionic and net ionic equations for following reaction.
Ca(NO3)2(aq) + Na2CO3 (aq) → ???
Calculate the pre-equilibrium concentration of Fe3+(aq) in a solution made by mixing 2.8 mL of 2.010?3 M Fe(NO3)3 and 7.2 mL of 2.010?3 M NaSCN. Assume the final volume is 10.0 mL.
compute the distance r in Angstroms at which the attractive portion of the L-J potential has diminished to an (absolute) value of RT (T=298K).
A standard oxalic acid solution is 0.065 M. It was prepared by dissolving H2C2O4*2H2O in distilled water.
Derive the general expression for the work per kilomole of a van der waals gas in expanding reversibly and at a constant temperature
solid sodium reacts violently with water produing heat hydrogen gas and sodium hydroxide. how many molecules of
The temperature of a sample of water increases from 21.9°C to 45.3°C as it absorbs 5669 J of heat. What is the mass of the sample.
Draw an approximante titration curve for the titration of 75 mL of 0.020 M NH3 (pKa of NH4=9.24) with 0.10 M HCl. Label the axes
a rigid ball contain 25.0 liters of air at 22 degree Celsius and 6.25atm pressure was placed in an oven at a temp of 100degree what was the new pressure inside the ball.
the average atomic mass of naturally occurring lithium is 6.941 amu. its is mixture of two isotopes : lithium 6 (isotopic mass = 6.01512amu) and lithium 7( isotopic mass = 7.01600). what is the percent composition of lithium
octane has a density of 0.692 grams per centimeter cubed at 20 degrees celcius . how many grams of oxygen molecules are
a monolayer of n2 molecules effective area 0.165 nm2 is adsorbed on the surface of 1.00 gm of feal2o3 catalyst at
The basic Salt sodium acetate, CH3COONa, is completely soluble in water. What is the pOH of a 0.25 M solution of sodium acetate?
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