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A sample of gas has a volume of 47.18 L. Determine the new volume of the gas if the pressure is tripled while the temperature is kept constant.
Balance the following electrochemical equation for an acidic environment. HCl + Al3+ -----> ClO41- + Al
How much energy, in joules, must be absorbed to convert to Na^+ all the atoms present in 1.00mg of gaseous Na. The first ionization energy of Na is 495.8kJ/mol.
research recently reported the first optical atomic trap. in this device beams of laser light replace the physical
For the reaction occuring in acidic aqueous medium, balance the equation, such that all coefficients are the lowest possible integers
What is the balanced net ionic equation for precipitation of CaCO3 when aqueous solutions of Na2CO3 and CaCl2 are mixed
It is estimated that more than 5 billion metric tons of CO2 is added to the atmosphere each year. Assume that CO2 is an Ideal gas at 25 oC and 1 atm.
Ethylene glycol, C2H4(OH)2 is a colorless liquid used as automobile antifreeze. If the density at 20 degrees celsius of a 4.028 m solution of ethylene glycol in water is 1.0241 g/ml, what is the molarity of the solution? The molar mass of ethylene..
At a temperature of 500 degrees celsius the equilibrium constant ,Kc, for the following nitrogen fixation reaction 3H2(g)+N2(g)----->2NH3 is 6.0x 10^-2 . If 0.250 mol/L of H2 and 0.050 mol/L NH3 are present at equilibrium, what is the concentratio..
Draw an energy-reaction coordinate diagram for both exothermic and endothermic reactions and compare the two. How would temperature changes observed using a calorimeter differ for exothermic and endothermic reactions?
When a sample of aqueous hydrochloric acid was neutralized with aqueous sodium hydroxide in a calorimeter, the temperature of 100.0 g of water surrounding the reaction increased from 25.0°C to 31.5°C.
Problem- Decide whether or not each of the following metals dissolves in 1 M HCl. For these metals that do dissolve, write a balanced redox reaction showing what happens when the metal dissolves.
An unknown solution containing Yellow five dyes displays an absorbance reading of 0.628. Explain the molar extinction coefficient for Yellow 5 dye is 27300 L/mol cm. Explain what is the concentration (in M) of Yellow five in the unknown solution
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