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A 20mL sample of 0.250M HCl is to be titrated to the equivalence point using a 0.170M NaOH solution. Determine the number of mL of NaOH solution that will be needed to neutralize for HCl. Show all work.
calculate the masses of the solid you must measure out to prepare 100ml each of 0.025 m kno3 0.025 m cuso4 0.025 m
Pressure is gradually decreased from 87.7mL to 42.6mL. What is the final pressure of ammonia if there is no change in pressure?
The height of water in a water barometer is 883 cm at 20 degrees C. The density of water at 20 degrees C is 0.998 gmL^-1 what is the pressure?
An inflated balloon is put in a refrigerator, and it shrinks. How does the first law of thermodynamics apply to this case? What can be said about the total entropy of the universe? Why is it true?
Your instructions should include the volumes of the solutions required. (1b) (4 marks) What is the buffer capacity of the resulting solution
Problem- What is the proton concenteration in a solution of 102.7 mM acetic acid (this concentration represents the sum of both the acetic acid and the deprotonated acetate) at pH 5.77 if the pKa of acetic acid is 4.76? Report your answer in micro..
Find the change in entropy (S) for the system, surroundings and universe for the conversion of 1 mol of ice at 0 degrees C and 1.00 atm to 1.0 mol of steam (vapor) at 100 degrees C and 0.50 bar. Useful data might be
Calculate the pI value of the tripeptide:N ( Asp - Gly - Glu ) C
Problem- Draw the structures of salicylic acid and aspirin. Circle and identify three functional groups present in each compound.
The density of liquid oxygen at its boiling point is 1.14 kg/L , and its heat of vaporization is 213 kJ/kg . How much energy in joules would be absorbed by 4.0 L of liquid oxygen as it vaporized?
Calculate the grams of solute needed to prepare each of the following solutions. Express the answer using 2 sig figures.
Would you expect a Diels-Alder reaction between maleic anhydride and naphthalene to require more or less harsh conditions
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