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Compute the expected pH of the acetate buffer and compare it with the pH determined by the pH meter. If they are different, suggest possible explanations. Compute the total concentration of the buffer.
when ethane c2h6 reacts with chlorine cl2 the main product is c2h5cl but other products containing ci such as c2h4ci2
Calculate the molarity of Pb2+ when 20.00 mL of 0.400 M Pb(NO3)2 is diluted with water to a volume of 200.00 mL.
Explain a steam turbine in a small electric power plant is designed to accept 4500 kg/h of steam at 60 bar and 500oC as well as exhaust the steam at 10 bar. Presuming that the turbine is adiabatic and has been well designed so that 0=gen)
The partial pressures of gas B dissolved in liquid A at 298 K are listed in the table below. If the vapor pressure of pure B at this temperature is 9500 Kpa, does this solution obey Raoult's Law
Explain how many neutrons are emitted when a californium-249 nucleus (Z=98) is bombarded with a carbon-12 nucleus to produce a >257/104 Rf
A 4.80 g nugget of pure gold absorbed 276 J of heat. What was the final temperature of the gold if the initial temperature was 26.0°C?
While a 0.579g sample of a mixture of volatile hydrocarbons is burned in a bomb calorimeter with a heat capacity of 3389 J/degrees Celsius, the temperature rises by 6.40 degrees Celsius. Explain how much energy (in kilojoules) is released during c..
Student A performed the extraction of trimyristin utilizing chloroform as a solvent, while student B did the extraction utilizing water as a solvent. Explain which student will be more successful in the extraction and why. Define what problems eac..
Calculate w (in kJ) when 566 g iron (III) oxide (MM = 159.7 g/mol) reacts with excess carbon to produce carbon dioxide gas at 332 K: 2Fe2O3(s) + 3C(s) ? 4Fe(s) + 3CO2(g)
Calculate the wavelength (in nanometers) of a photon emitted by a hydrogen atom when its electron drops from the n = 4 state to the n = 1 state.
After he cleaned up the mess, he looked around the baby's changing table for remedies for this horrible rash, but he could not find anything. As he was about to panic, he remembered some useful acid-base chemistry from a class years ago. He opened..
what is the total mass in grams of a series of samples that have masses of 753mg,
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