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Explain what is the pH at the equivalence point in the titration of 10.0mL of 0.41 MHZ with 0.200 M NaOH? Ka = 3.7 × 10-5 for HZ.
When a 110 gram peice of metal at 80 degrees celcius is placed in 220 grams of water at 0 degrss celcicius the metal is cooled and the water is warmed and both come to a final temprature of 20 degrees celcius. What is the specific heat of the meta..
draw four different lewis electron-dot formulas for the seo2nbspmolecule. hint one should have two single bonds two
The first step in industrial nitric acid production is the catalyzed oxidation of ammonia. Without a catalyst, a different reaction predominates
Estimate the pH range over which the color change occurs for bromocresol green. What would be the effect on your results if methyl red indicator, pKa =5.0 were used during the experiment
What volume of 2.0 M NaClO must be diluted with water to prepare 500.0 mL of 0.10 M NaClO?
Calculate the mass of propylene glycol that must be added to 0.500 kg of water to reduce the vapor pressure by 4.60 torr at 40 degrees celcius.
What is the value of the equilibrium constant at 25 oC for the reaction between the pair: Sn(s) and Pb2+(aq) to give Pb(s) and Sn2+(aq) Use the reduction potential values for Sn2+(aq) of -0.14 V and for Pb2+(aq) of -0.13 V
Water originally at -10 deg. celsius and 0.30 atm is heated at constant temperature until the temperature is 80.0 degrees celsius
A liquid fuel mixture contains 28.25% hexane, 14.05% heptane, and the rest octane. What maximum mass of carbon dioxide is produced by the complete combustion of 12.0kg of this fuel mixture
A lime-soda softening plant treats a flow of 150 MGD, and the water has 86 mg/l CO2. The commercial grade of quicklime has a purity of 85% and the soda ash has a purity of 95%.
How many liters of the antifreeze ethylene glycol would you add to a car radiator containing 6.50 L of water if the coldest winter temperature is -28.0 degrees Celsius? Calculate the boiling point of this water-ethylene glycol mixture.
What is the molecular mass of a gas that diffuses through a porous membrane 1.26 times faster than Kr
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