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Problem- What is the volume of 5.00 x 10^-3 M HNO3 is needed to titrate 80.00 mL of 5.00 10^-3 M CA(OH)2 to the equivalence point?
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Explain why the elimination reaction in acetone promotes an E2 mechanism while water promotes and E1 mechanism? Which product is more thermodynamically stable, the E or Z isomer?
There are 3 different possible structures (known as isomers) for a dibromoethene molecule, C2H2Br2. One of them has no net dipole moment, but the other two do. Draw a structure for each isomer. Include H atoms.
What are the two half-reactions that occur at the indicator electrode? Answer by adding charges, coefficients, and products to the following.
The ethanol enters the reactor as a vapor at 300°C and 5 bar pressure, and at a flow rate of 100 mol/h. How much heat must be added/removed (state which) to maintain the reactor outlet temperature at 300°C? State your answer in kJ/h.
An aqueous solution is 5.80% methanol by mass with d=0.988g/ml. What is the molarity of methanol in this solution
A buffer was prepared by adding 2.4 g of ammonium nitrate to 100 mL of 0.30 M ammonia (Kb = 1.8 x 10^-5). To this solution was then added 10.0 mL of 0.30 M sodium hydroxide, what is the new pH
Calculate the amount of heat required to completely sublime 78g of solid dry ice at its sublimation temperature. The heat of sublimation for carbon dioxide is 32.3kJ/mol .
A mixture of pentane and hexane has a vapor pressure of 258 torr. The standard vapor pressure of pentane is 425 torr. What is the mole fraction of pentane?
In the concentration range of 500 to 2000 ppm of U, there is a linear relationship between absorbance at 351.5 nm and concentration. At lower concentrations the relationship is nonlinear unless about 2000 ppm of an alkali metal salt is introduced ..
a) what is the total pressure in the reaction vessel b) what is the partial pressure of N2 c) If the volume of the reaction vessel is decreased to 5.0 L, would you expect the pressure of the gases to increase or decrease
Predict the initial and final products for the following reaction involving 2-pentyne. Hint: the products are isomers and in equilibrium with each other.
Water expands when it freezes. how much work does 100. g of water do when it freezes at 0 degrees celcius and pushes back the metal wall of a pipe that exerts opposing pressure of 1070 atm?
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