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Calculate the change in pH when 4.00 mL of 0.100 M HCl(aq) is added to 100.0 mL of a buffer solution that is 0.100 M in NH3(aq) and 0.100 M in NH4Cl(aq). Calculate the change in pH when 4.00 mL of 0.100 M NaOH(aq) is added to the original buffer solution.
Determine the Kelvin temperature required for 0.0470mol of gas to fill a balloon to 1.20L under 0.988atm pressure.
Tf will be negative and so you must use negative Kf values. Either way, the freezing point of the solution should be lower than that of the pure solvent. Assuming 100% dissociation, Find the freezing and boiling points of 1.85 m Na2SO4(aq).
The original concentration of Glucose-6-phosphate is 0.25 M, but when the system reaches equilibrium, only 2.5% of the original glucose-6-phosphate remains. calculate the Keq.
What is the specific enthalpy and specific volume of steam at 350 c and 60 bar? Is this steam super heated or saturated?
A 4.50-g sample of LiCl at 25 C dissolves in 25.0 mL of water also at 25 C. The final equilibrium temperature of the resulting solution is 60.8 C. What is the enthalpy, change of enthalpy, of LiCL expressed in kj per mole?
When steam (hot water) is passed over iron, hydrogen gas and iron (3) oxide are formed. What weight of steam would be needed to react completely with 100.0g of iron.
The principal quantum number, n, describes the energy level of a particular orbital as a function of the distance from the center of the nucleus. Additional quantum numbers exist to quantify the other characteristics of the electron
When 50 mL of water contains 0.50 moles HCl at 22.5 degrees celsius is added to 50.0mL of water containing 0.50 mol NaOH at 22.5 degrees celsius in a calorimeter, the temperature of the solution increases to 26.0 degrees celsius.
An airplane is pressurized to 650 mmHg, which is the atmospheric pressure at a ski resort at 13000 ft altitude: a) if air is 21% oxygen, what is the partial pressure of oxygen on the plan
When one mole of C6H6 is burned, 3.27 MJ of heat is produced. When the heat from burning 6.65g of C6H6 is added to 5.69 kg of water at 21C, what is the final temperature of the water.
The experimental value of nylon 6,10 is 2.160 grams. I need to calculate the theoretical mass of nylon 6,10, in order to find out the percent yield.
Explain the relationship between the electron configuration and the corresponding principal and angular momentum quantum numbers for each of your elements.
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