Calculate the radiant energy of an einstein
A mole of photons is called an einstein. Calculate the radiant energy of an einstein if the photons have a wavelength of 608.7 nm.
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A 2-kg mass of an ideal gas expands at a constant pressure of 172 kPa in a piston-cylinder system from a temperature of 32oC to a final temperature of 182oC. Determine Q, W, DeltaU and DeltaH.
The volume of HI(aq) required to reach the equivalence point : (1c) The pH at the half-neutralization point. (1d)The pH at the equivalence point.
Nitrogen and oxygen form an extensive series of oxides with the general formula NxOy. What is the empirical formula for an oxide that contains 30.44% by mass nitrogen?
A student places 1.38g of unknown metal at 99.6 degrees Celsius into 60.50 g of water at 22.1 degrees Celsius. The entire system reaches a uniform temperature at 31.6 degrees Celsius. Calculate the specific heat of the metal
Carbon dioxide is dissolved in an aqueous solution at 303 K at a concentration of 0.90 x 10-4 kg/kg. Henry's Law constant at these conditions is 0.186 x 104 atm. What is the partial pressure of CO2 in equilibrium with the solution in order to arrive
If 0.0100 mol of HCl gas is bubbled into 500 mL of the buffer, what is the new pH of the solution?
Show how you would synthesize ethyl 2-benzyl-3-phenylpropenoate from benzaldehyde, ethyl acetate and benzyl bromide
Calculate the pH at the points in the titration of 40.00 mL of 0.425 M NH3 for the reaction below. NH3(aq) + HNO3 ? NH4+(aq) + NO3?(aq) For NH3, Kb = 1.8x10-5. Enter your answer with 2 decimal places.
What is the pH (to nearest 0.01 pH unit) of a solution prepared by mixing 87.0 mL of 0.0601 M NaOH and 71.0 mL of 0.0138 M Ba(OH)2
Volume of naoh solution used for flask number one or run 1 : 17.56 ml. How to calculate the molar mass of this unknown metal carbonate for run one?
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