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The water level in a graduated cylinder initially at 223mL rises to 279mL after a piece of lead is submerged. What is the mass in grams of the lead? Express your answer using two significant figures.
Lead Density (g/mL) is 11.3
What is the maximum number of electrons that can be in a second electron shell (principal energy level)?
For the reaction, 2 Cr2+(aq) + Cl2(g) 2 Cr3+(aq) + 2 Cl-(aq), the value of E°cell is 1.78 volt. What is the value of E°cell for the following reaction?
Document for the redox titration using sodium thiosulphate
The reaction of aqueous sodium chloride and aqueous silver nitrate is represented by the balanced ionic equation.
An Antifreeze mixture is 11.0-m ethylene glycol solution. Water is the solvent and it has a mass of 800g. What is the mass of the solution
Compute the mass of Ba(CIO3)2 formed from 0.1C of a M HCIO3 solution plus an excess of Ba(OH)2
Calculate the cell potential for the following half cell if it is connected to a standard calomel electrode (not a SHE) as the anode.
Assume that a particular reaction evolves 231 of heat and that 20 of work is gained by the system. What are the values of delta E and delta H for both the system and the surroundings?
a 73.8 gram sample of caseo42h2o was heated thoroughly in a porcelain crucible until its weight remained constant.
a good yield of photosynthesis for agricultural crops in brightsunlight is 20kg of carbohydrate for example sucrose per
the first-order rate constant for the reaction of methyl chloride ch3cl with water to produce methanol ch3oh and
A sample of gas has an initial volume of 2.4 L at a pressure of 855 mm Hg and a temperature of 298 K. If the gas is heated to a temperature of 387 K and expanded to a volume
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