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An unknown monoprotic weak acid, HA, has a molar mass of 55.0. A solution contains 2.50 g of HA dissolved 800. mL of solution. The solution has a pH of 2.000. What is the value of Ka for HA
What is the specific heat capacity (in SI unit) of the following.
A mixture of gases contains 0.34 mole CH4, 0.37 mole C2H6, and 0.48 mole C3H8. The total pressure is 1.50 atm. Calculate the partial pressures of the gases. PCH4 atm PC2H6, atm PC3H8 atm
Calculate the values of E for the cell when the following volumes of the Cu titrant have been added: (Activity coefficients may be ignored as they tend to cancel when calculating concentration ratios.
A vessel which is 5 m^3 is filled with propylene. The pressure inside the vessel is 470 psi, and the temperature of the vessel is 25 C. A) How many kg of propylene are in the vessel?
what percentage of the original ag remains in solution when 180 ml 2.10times10-2 m agno3 is added to 240 ml
2.10 L of a buffer solution that is 0.360 M in NH3 and 0.430 M in NH4Cl are diluted to 4.30 L with distilled water. What is the pH of the buffer? Kb of NH3 = 1.8 10-5.
Standard Enthalpies of Formation: acetic and AB2 = - 25.65 kCal/ mole,A++ = -8.65 k Cal/ mole,Temperature = 10 Degree Celsius determine pK,
The initial volume of a sample of argon gas is 415 mL at 323°C. If the pressure is held constant and the volume is changed to 599 mL, what will be the new temperature (in °C)?
The atmospheric pressure in the room when the measurement was made was 628 mmHg and the temperature was 36.0 degrees C. What is the density of the gas?
Which of the following solutions has the highest osmolarity. 1.1 M Ba(OH)2 .75 M Fe2(SO4)3
A: 2-methyl-1-bromohexane B: 1-bromohexane which of the above compounds will react the fastest with NaI in acetone?
Consider the figure that shows the distillation apparatus. Describe the practical reasons behind the direction of the flow of water through the condense. It will not let me upload the picture of the figure. It keeps saying that there is an error? ..
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