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HCL(aq) is a much stronger acid that Ch3COOH(aq). However, when 5 drops of 0.10 M HCL(aq) is added to 20 drops of a buffer solution that is 0.10 M CH3COOh(aq) and 0.10 M CH3Co2- only a very small change in pH occurs. Explain?
Hydrobromic acid reacts with potassium carbonate to form potassium bromide,carbon dioxide , and water. Barney the incompetent lab tech accidently knocked a flask containing 255ml of 0.500 M hydrobromic acid onto the floor, and now he has to clean ..
Define and describe teh properties of Bronsed conjugate acid base pairs and how they relate to the pH scale and calculate the pH or pOH values for a given ion concentration.
1.20 moles of a nonelectrolyte is dissolved in 1000 g of water. What is the value of the freezing point depression of this solution, given that Kf for water is 1.86 C/m?
If 125 cal of heat is applied to a 60.0 g piece of copper at 24C, what will the final temperature be? The specific heat of copper is 0.0920cal/(g x C).
Calculate the pressures in the flask in parts a and b (in torr) if the atmospheric pressure were instead 675 torr.
The purity of a 0.287 -g samole of Zn(OH)2 is determined by titrating with a standard solution, requiring 37.8 mL. The HCL solution was standardized by precipitating AgCl in a 25.0-mL aliquot
Determine the ionization energy (in kilojoules per mole) of a metallic element if light of wavelength 67.2 nm ejects electrons with a speed of 2165 km/sec.
A bicycle tire is filled with air to a pressure of 85.0 psi at a temperature of 19°C. Riding the bike on asphalt on a hot day increases the temperature of the tire to 58°C. The volume of the tire increases by 2.8%. What is the new pressure in the ..
how many grams of methylamine must be combusted to raise the temperature of 431 g of water from 11.0 degrees Ce to 41.0 degrees C?
A 2kg sample of lead is heated from a temperature of 30 degrees celsius to a temperature of 60 degrees celcius. The specific heat of lead is 128 J/kg degrees celsius. How much heat energy di this sample absorb?
what would the coefficent of Al(NO3)3 be in the balanced equation?
the chromic acid test acetone, formaldehyde, propanal, 3-pentanone, acetophenone, and benzaldehyde
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