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A solution is prepared by dissolving 17.6g Ammonium sulfate(NH_4)_2SO_4 (Molar Mass: 132.17g/mol) in enough water to make 121.0mL (0.121L) of stock solution. A 12.30mL (0.0123L) sample of this stock solution is added to 59.00mL of water. Calculate the concentration of ammonium ions and sulfate ions in the final solution.
what was the mass (g) of molecular oxygen from the air that combined with the substance to produce the dense gas? B. What is the ratio of the weight of oxygen burned to the weight of the dense gas produced?
A voltaic cell SIMILAR to that shown in Figure 20.5 is constructed. One electrode compartment consists of a silver strip placed in a solution of AgNO3,
The % mass composition of 0.1458g sample of a compound was measured by burning the compound in an excess of oxygen.
A compound of molecular weight 280 g/mol a concentration of 15.0 micrograms per ml absorbs 65 percent of radiation at a certain wavelength in a 2 cm cell.
Suppose that each of the following pairs of compounds are being used as reactants in this experiment. Draw structures of the intermediate imines formed,
how much product could form assuming no loss of grignard reagent to side reactions and addition of excess benzophenone.
what effect does increasing the temperature have on equilibrium? what effect does adding a catalyst have on equilibrium?
Consider a distillation column that is fed 1000 kg/hr of an equimolar mixture of benzene and cyclohexane. Theof the benzene distillate stream is to contain 90 % with a benzene mole fraction of 0.95.
Assume the total heat capacity of the air C air=30 J/K. Describe what's the likely ice will ne after the system reaches equilibrium. b) Estimate theliekly final temperature after reaching equilibrium
is submerged in 7.81g of water at 52.5 degrees C in an insulated container. what is the final temperature of both substances at thermal equilibrium.
Quantum number representations - What are the possible values of the four quantum numbers for one electron in a 5d orbital?
For the reaction 2 HCl + Na2CO3 → 2 NaCl + H2O + CO2 what volume of 0.45 M HCl solution would be needed to produce 2.5 L of CO2 at STP
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