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Assume that a reaction takes place at 295 K and 305 K. What must the activation energy be for the rate constant to double as described?
Identify the sets of quantum numbers that describe all the electrons in a neutral beryllium atom, \rm Be. Each set is ordered
1.what advantage do calcium chloride pellets have over magnesium sulfate powder. 2.what advantage does decantation have over filtration for small volumes
A sample of propane occupies 250.0 L at 125 kPa and 38 degrees celsius. Find its volume at 100.0 kPa and 95 degrees celsius.
Explain which of the following aqueous solutions has the strongest ion-dipole attractions:0.3 M Na3PO4, 0.1 M NiF2,0.2 M Rb2CO3, 0.01 M Sr(OH)2 , 0.03 M ScBr3.
The activation energy for a particular reaction is Ea = 14.20 kJ. What percentage of the molecules are at or above the activation energy at 500.0 K
The root-mean-square speed of CH4 molecules at 25°C is about 0.56 km/s. What is the root-mean-square speed of a H2 molecule at 25°C?
The second car is of European manufacture, costs$21,700, and has a rated mileage of 19km/L. If the cost of gasoline is $1.25/gal and if the cars actually deliver their rated mileage, estimate how many miles you would have to drive for the lowest f..
Which concentration becomes smaller as the temperature is increased from 20 degrees celcius to 80 degrees celcius
Since cereal sample may have other materials other than Fe that absorbs light. Using cereal sample as the blank can eliminate these absorption so that the transmittance was solely due to Fe.
The water bath conatins 2.90 kg of water at 27.6 degrees celcuis. During the reaction 110 kj of heat flows out of the flask into the bath. Calculate the new temperature of the water bath
A solution is prepared by dissolving 17.75 g Sulfuric acid (H2S04;MW = 98.0g/mol) in 93.2 g of water. If the density of the solution is 1.1094g/mL, what is the molarity of the sulfuric acid?
A hypothetical solution forms between a solid and a liquid. The values of the thermodynamic quantities involved in the process are shown.
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