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Give the quantitative species inventory for the system ultimately resulting from a mixture of 2.00 mols Cl2, 1.00 mols Br2, 0.50 mols I2, 0.50 mols NaCl, 1.00 mols NaBr, and 2.00 mols NaI
A 15 mL sample of a solution of Pb(ClO3)2 was diluted with water to 19 mL. A 15 mL sample of the dilute solution was found to contain 0.027 moles of Pb2+. What was the concentration of Pb(ClO3)2 in the original undiluted solution.
Instant cold packs used to treat athletic injuries contain solid NH4NO3 and a pouch of water. When the pack is squeezed, the pouch breaks and the solid dissolves
How many grams of dry NH4Cl need to be added to 1.80L of a 0.400M solution of ammonia, NH3 , to prepare a buffer solution that has a pH of 8.90? Kb for ammonia is 1.8*10^-5.
what is the density of hydrogen sulfide at 1.2 atm and 307 K? answer in units of g/L
A buffer solution was prepared by adding 4.95 g of sodium acetate, NaCH3CO2, to 2.50 x 10^2 mL of 0.150 M acetic acid, CH3CO2H. What is the pH of the buffer?
write the full mechanism and balanced equation for the reaction of horseradish peroxidase as an enzyme
Find out the Kb of ammonia if the pH of a buffer formed by mixing 50.0 mL of 1.00 M NH 3 and 50.0 mL of 1.00 M ammonium nitrate?
How do you determine the number of protons and neutrons in an atoms' nucleus and the number of electrons in its first and second shells?
Calculate approximately the value for the heat of sublimation of methane and calculate the pH for this solution
The amount of energy needed to heat 2.00 g of carbon from 50.0 C to 80.0 C is 42.6 J. what is the specific heat capacity of this sample of carbon.
If, in a certain experiment, over a specific time period, 0.0035 mol PH3 is consumed in a 2.0 L container during each second of reaction, what are the rates of production of P4 and H2 in this experiment?
There are 2.2 mg of lead in exactly 500 g of a water sample. What would the concentration of lead be in parts per million.
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