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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Calculate the pre-equilibrium concentration of Fe3+(aq) in a solution made by mixing 2.8 mL of 2.010?3 M Fe(NO3)3 and 7.2 mL of 2.010?3 M NaSCN. Assume the final volume is 10.0 mL.
A swan can float on a lake with only 33% of its volume below the surface. What is the average density of the swan
Silver chloride, AgCl, is a sparingly soluble solid. Answer the following questions about a saturated solution prepared by placing solid silver chloride in a 3.49 10-5 M NaCl(aq) solution
A cylinder, with a piston pressing down with a constant pressure, is filled with 2.10 moles of a gas (n1), and its volume is 50.0 L (v1). If 0.500 mole of gas leak out, and the pressure and temperature remain the same, what is the final volume of
The atom decays and ejects an electron of speed .48c relative to itself. What is the speed of the electron relative to the laboratory, if in the forward direction?
Neither carbon tetrachloride nor trans CHBr=CHBr have dipole moments. Both have cery different molecular geometries. What are their molecular geometries, and why are they different?
For each reaction, identify the substance being oxidized and the substance being reduced. Express answers as chemical formulas for oxidized and reduced answers. 1. 2Sr(s)+O2(g)----->2SrO(s) 2. Ca(s)+Cl2(g)---->CaCl2(s) 3. Ni^2+(aq)+Mg^2+(aq)
Students were instructed to mix the benzaldehyde and acetone starting materials in their conical vials before adding the ethanolic sodium hydroxide solution. a. Why was this essential to the success of the reaction
For equal moles of CaCl2 and Fe(NO3)3 dissolved in the same volume of distilled water, how do you expect the conductivities of each solution to compare? Explain your reasoning.
Calculate how much AgCl is obtained by a precipitating the salt from 10.00 mL of 0.0500 M AgNO3 (aq) by adding an excess of 6 M HCl(aq), then tell why an excess of HCl(aq) is used. Please show all work and answer question completely.
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