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Calculate the molar solubility of silver phosphate Ag3PO4, in a solution that is also 4.5x10^?4 M sodium phosphate, Na3PO4. Ksp for Ag3PO4 = 2.8x10^?18
What is the pH of a buffer prepared by adding 0.708mol of the weak acid HA to 0.609mol of NaA in 2.00 L of solution? The dissociation constant Ka of HA is 5.66×10?7.
Explain how the carbonate system in natural waters provides buffering capacity
Using the technique of the previous problem ?E was found to be -2,000.00 kJ/mol of an unknown liquid hydrocarbon at 298 K. In another experiment it was determined that for each mole of hydrocarbon, 4 moles of oxygen gas are consumed and 9 moles of..
what is the balanced net ionic equation? AND what is the molarity of the tartaric acid solution?
The eamount of cadmium in a sample was determined using absorption spectroscopy as an analytical tecnique. Signals from a set of standards were measured and the resulting calibration curve was fit by a straight line with equation
a container holds 2,0 of gas. the total average change in KE of gas molecules in the container is equal to the the sum of KE of an 8,0x10^-3 -Kg bullet with speed
Determine the average atomic mass of helium, which has two isotopes having atomic masses 4.0026 amu and 3.0160 amu.The relative abundance of the two isotopes is 99.9999 percent and 0.0001 percent, respectively.
Write equation for the reaction : Mg+H2SO4(diluted) Identify the oxidizing agent and the reducing agent.
What concentration of acetate ion should be present in 0.100 M acetic acid to produce a buffer solution with pH 4.00?
In a particular biological reaction taking place in the body at 37°C, the change in enthalpy was --135 kJ mol--1 and the change in entropy was --136 J K--1 mol--1. (a) Calculate the change in Gibbs energy (b) Is the reaction spontaneous? (c) ..
For a given sample of {rm CH_3OH}, the enthalpy change on reaction is 19.0 kJ. How many grams of hydrogen gas are produced?
The temperature is increased to 45 degree celcius then determine what is the pressure in the cylinder
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