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The strongest line in the visible region of the neon spectrum has a wavelength of 640.2 nm. What color does the light appear? What is the energy of a photon associated with this line?
A chemist was studying the solubility of two "new" compounds she made in her laboratory at work; NI3 and CBr4. They will not dissolve in each other Explain why they may not be dissolving in each other, based on molecular comparison, and draw the 3..
In a certain decomposition reaction, dinitrogen pentoxide decomposes to form nitrogen dioxide gas and oxygen gas. It was found that at 187 seconds the concentration of oxygen gas was 0.374 mol/L and at 549.5 seconds the concentration of oxygen gas..
If the experimentally determined calibration curve is Absorbance = 12100 M-1 * [ferroin (M)] + 0.00230 and the measured absorbance of a sample solution is 0.367, what is the ferroin concentration in the measured solution
When strontium bromide (SrBr2) is heated in a stream of chlorine gas, it is completely converted to strontium chloride
a bomb calorimeter whose components have a heat capacity of 6.66 kjdegc is filled with 913 g of water. the amount of
a sample of sodium reacts completely with 0.142 kg of chlorine forming 234 g of sodium chloride. what mass of sodium
A 30.0 mL sample of a diprotic acid is titrated with 0.255 M KOH. If 59.5 mL of base is required to reach the second equivalence point
A sample of gas with an initial volume of 32.0 L at a pressure of 755 mmHg and a temperature of 325 K is compressed to a volume
What determines whether two substances are likely to be miscible with each other, in terms of thermodynamic and intermolecular forces
Consider that a certain wastewater treatment plant returns 4.55 million gallons per day of treated water into a local stream, and that 2.2 mg of chlorine are added to each liter of treated water for e. coliremoval.
Calculate the ionic strength of a solution that is 0.05 mol/kg in Na3[Fe(CN)6](aq), 0.02 mol/kg NaCl(aq),
assume that an astronaut's energy comes from burning glucose(c6h12o6). write 3 equations (including delta H values that represent the heats of formation for each C6H12O6, H20 and CO2.
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