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Question- Solid PBr2 is added to 100.0 mL of water and the resulting mixture of solid and solution stirred periodically over 30 minutes. After filtering the solid from the solution, the solution is found to have a chloride concentration [Br-] = 0.0148 M. What is the Pb2+ concentration?
I desire help for above question. Illustrate each step for the above problem
Calculate the pH after 0.010 mol gaseous HCl is added to 250.0 ml of each of the following buffered solutions. a. 0.050 M NH3/ 0.15 M NH4Cl
the most important commercial process for converting n2 from the air into nitrogen-containing compounds is based on the
Choose five different polymers obtained through step polymerization. Present its synthesis as well as the detail mechanism of the reaction; talk about their commercial applications or potential commercial applications if these polymers are still b..
Question- The equilibrium constant Kp for the dissociation of N2O4(g) to 2NO2(g) is 1700 at 227C degree. Predict its value at 27C degree. For this reaction, Change of H is 56.8KJ/mol.
If the average kinetic energy of a gas is doubled and the volume remains constant, what is the change in pressure
In a titration of 38.16 mL of 0.1234 M hydrazoic acid (HN3, Ka = 1.900x10-5) with 0.08559 M KOH, what is the pH after 87.78 mLs of titrant have been added
a cylinder of He gas has a volume of 25.0L at 22 degrees C and 5.6atm. How many moles of He are in such a cylinder?
When a solution of hydrogen peroxide is put on a cut, it bubbles, producing water and oxygen gas. If someone puts 0.56 mL of 3.00% hydrogen peroxide solution on a cut, what is the volume in mL of oxygen produced
Chromatography is all about intermolecular forces. Name two intermolecular forces that are involved in chromatography and the roles that they play during separation.
Define geometric isomerism; give one example, and the structural formula for each of its isomers.
The atmospheric pressure was measured to be0.9337 atm, the room temperature was 20.00oC. At this temperature, the vapor pressure of water is 17.50 torr -- but assume a 50% relative humidity as outlined in the procedure for this experiment.
a 345 ml container holds nh3 at a pressure of 745 torr and a temperature of 45 degrees celsius. what is the molar
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