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Question- Calculate the pH for each of the following cases in the titration of 25.0 mL of 0.200 M pyridine, C5H5N(aq) with 0.200 M HBr(aq):
1) After addition of 25.0 mL of HBr
2) After addition of 31.0 mL of HBr
Depict your all calculation in detail so I can understand the solution thoroughly
three solutions are mixed together to form a single solution. one contains 0.2 mol pbch3coo2 the second contains 0.1
A hot air balloon is filled with 1.51 x 10^6 L of an ideal gas on a cool morning (11 C). The air is heated to 125 C. What is the volume of the air in the ballon after it is heated? Assume that noen of the gas escapes from the balloon.
[BrO- ]initial is 0.86 M. 65 seconds later [BrO- ] is 0.19 M. What is the rate of change of [BrO- ] in M/s? (The brackets, [ ], indicate concentration, that is, molarity (M) or moles/liter.)
What is the value of the equilibrium constant for the reaction between Al(s) and Cd2+(aq), at 25 °C?
A 10.00 mL sample of a solution of hydrofluoric acid,HF, is diluted to 500.00 mL. A 20.00 mL sample of the diluted solution requires 13.51 mL of a 0.1500 M NaOH solution to be titrated to the equivalence point.
A frog with the a mass of 4.60 oz can catch 2.0 flies every 3.5secs. if the avg. fly has a mass of 2.5mg how long will it take the frog to increase its mass to .35kg
If the molecular weight of a molecule is 180, how many grams would be required to make 100 milliliters of a 2 molar solution
How would you separate p-hydroxy benzoic acid from 3-amino propanoic acid?
how much pv work is done if 88.0 grams of c 2h 4 ethylene and 120 grams of hydrochloric acid hcl are permitted to react
What is the final concentration of a solution made from 7.1 mL of 0.8 M CuSO4 and 14.3 mL of water?
a gas expand and does P-V work on the surroundings equal to 294 J, at the same time , it absorbs 196J of heat from the surroundings. what is the change in energy of the system
according to le chacircteliers principle a system at equilibrium will respond to a stress by shifting in the direction
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