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Platinum has a face-centered cubic crystal structure and a density of 21.5g/cm3. What is the radius of the Platinum atom?
Consider the formation of nitryl fluoride: 2NO2+F2=2NO2 the reaction is first order in F2 and second order overall. what is the rate law
which gas has particles with the slowest average speed at 28 C? 1- Carbon dioxide 2- Sulfur trixoide 3- Sulfur hexafoluride 4- Hydrogen choride 5- Helium
Calculate the free energy change for the combustion of methane at 250oC. Assume that all reactants and products are gases and that the pressures of the various gases of interest are: methane = 0.56 atm, oxygen = 0.45 atm, carbon dioxide = 2.10 atm..
a 125 g metal block at a temperature of 93.2 degrees celsius was immersed in 100 g of water at 18.3 degrees celsius.
what happens to the mass of an icecube when we melt it an open
Determine the name of Cl2O. Why are the others not correct. Explain. Write out the formulas of all the incorrect answers to explain.
To a solution that is known to contain come of the soluble ions from group 1 and no other cations or inteferring substances, 12 drops of 6M hydrochloric acid is added and no precipoiate forms.To clear solution is evaporated to half its volume and ..
What volume 0.100 M NaOH will react completely with 25.00 mL of 0.100 M HCl?
A chemical is placed in a beaker containing 20g of soil and 500 ml water. at equilibrium, the chemical is found in the soil at a concentration of 100mg/kg of soil. the equilibrium concentration of this same chemical in the water is 250µg/L.
An alkane with a molecular formula of c18h18 reacts with chlorine in the presence of light and heat to give a single monochloride c8h17cl. What is the most resonalble structure for the starting alkane? and why?
If the cell potential is 0.061 V at 25?, what is the pH of the electrolyte at the hydrogen electrode
What is the mole fraction of each component in a mixture of 12.45g of H2, 60.67g of N2 and 2.38g of NH3
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