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Why are acids called proton donors? .Give more details please
How many grams of lead(II) sulfate is produced from 25.00mL of 0.15M Lead(II) nitrate and 40.00mL of 0.25M sodium sulfate. Which reagent is limiting and how many grams of the excess reagent are remaining after the reaction is complete
How many grams of copper are in the necklace? 3. If 18-karat gold has a density of 15.5 , what is the volume in cubic centimeters?
Calculate the mass defect and nuclear binding energy per nucleon of the each of the nuclides indicated below. A)Ti -48 (atomic mass = 47.947947 amu) mass defect = ______amu and Binding energy nucleon = ______MeV/nucleon
Explain what a high Ka value of an acid represents and what a low Ka value represents. State and explain the difference between the endpoint and the equivalence point in a titration
According to the Balmer-Rydberg equation, electromagnetic radiation with the shortest wavelength will be emitted when an electron undergoes which of the following transitions? (Balmer-Rydberg equation: 1/? = 1.09737 ? 107 m-1 (1/m2 - 1/n2)
In a qualitative analysis procedure, a chemist adds HCl to an unknown group of ions and then saturates the solution with H2S so that the solution is 0.1 M in HCl and 0.10 M in H2S. (a) What is the [HS -] of the solution
How the groups are numbered in modern periodic table? How the groups were numbered in periodic table of American system of naming? How the groups were numbered in periodic table of European system of naming? Do the groups from 3-10 have any trivial n..
The unimolecular decomposition of N2O5 has an activation energy of 102 kJ/mol and H= + 55 kJ/mol. Explain what is the activation energy for the reverse reaction?
Calculate the pH of a solution resulting from the titration of 50mL of 0.04M HBr with 25 mL of 0.107M KOH. Give your answer to two decimal places
how many grams of lithium bromide must be added to 35 grams of water to make a solution
what is the percent ionization of a solution made by adding 6.00 grams of ch3cooh to 100 g of water kb 0.512 ? cm if
What volume (mL) of the solute ethanol should be added to 6040 g of the solvent acetone to generate a solution that contains 16.0 pph by mass ethanol
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