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Describe how you will separate the following mixture of ions in solution. Use complete sentences and include all the details but be brief and concise in all your procedures. Include an explanation/rationale of the reagent used, etc.
a. Na+ , Al3+, Ni2+, Sr2+
b. Cu2+, Pb2+, and Cd2+
If the speed limit is 75 mph, could the driver of the car reasonably evade a speeding ticket by invoking the Heisenberg uncertainty principle?
Metallic magnesium reacts with steam to produce magnesium hydroxide and hydrogen gas. If 17.1 g of Mg are heated with 9 g of H2O, what is the limiting reactant.
When a 1.30-g sample of ethanol (alcohol) is burned in a calorimeter, the heat released increases the temperature of 870g of water in the calorimeter from 18.5 C to 28.9 C .
If solar radiation is 1200 W/m^2 , how many photons strike the leaf every second? Assume three significant figures and an average wavelength of 504 nm for solar radiation. A green leaf has a surface area of 2.75 cm^2 .
1.00 moles of sucrose (C12H22O11), and 1.20 moles of glucose. Sucrose and glucose are nonvolatile. What is the mole fraction of water in this solution?
To resolve an object in an electron microscope, the wavelength of the electrons must be close to the diameter of the object. What kinetic energy must the electrons have in order to resolve a protein molecule
has a rate constant k= 1.10 x10^-14 at 470 degrees C and an activation energy of 264 kJ/mol. What is the temperture of the reaction when the rate is constant is equal to 4.36 x 10^-3s^-1?
The latent heat of vaporization of mercury is around 300,000 J/kg. What is the least amount of mercury (in kg) that can be vaporized when 3 million joules are introduced?
As a reaction progresses backwards toward equilibrium K is the highest value Q attains. e) A reaction with no products present has an infinite Q value.
Pure 2-methylpentane is held in a closed container at 150 degrees F. Both gas and liquid are present. What is the pressure in the container?
If 2.5 mol of ethylene oxide is decomposed at 93 degrees celcius what will be the final temperature of the products? The heat capacity of the products is 110.13J/mol C?
Draw a logarithmic concentration diagram showing the relationship between [CO2] and [Ch4] as a function of pE for pH=7 and [CO2] +
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