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Problem- Calculate the wavelength (in m) of a photon capable of exciting an electron in Li^2+ from the state n= 2 to the state n=4
Elucidate the each and every step in detail for helping me to understand the answer of the above problem
Question- The faraday is equal to 96,845 coulombs. A coulomb is the amount of electricity passed when a current of one ampere flows for one second. Given the charge on an electron, 1.6022 x 10^ -19 coulombs, calculate a value for Avogadro's number
Consider the titration of a 24.0 ml sample of 0.120 M HC2H3O2 with 0.105 M NaOH. Determine the initial pH.
calculate the percentage of empty space in 1 mol of water at 25C. Obtain the density from the experiment " Some Measurements of Mass and Volume." The volume of a molecule of water can be taken as the sum of the volumes of the two hydrogen atoms.
Question1. Describe the movement of gas particles. ; Question2. Compare the shape and volume of a solid and a gas.; Question3. Gases are easily compressed.
calculate the minimum concentration of mg 2+ that must be added to .10 M NaF in order to initiate a precipitate of magnesium flouride.
Calculate the cell potential (Ecell) of an electrochemical cell with Mg/Mg2+ and Fe/Fe2+ electrodes. [Mg2+] = 0.200 M and [Fe2+] = 0.050 M.
A 0.0560 g quantity of acetic acid is dissolved in enough water to make 50.0 mL of solution. Calculate the concentration of H+, CH3COO-, and CH3COOH at equilibrium. Ka for acetic acid= 1.8x10^-5.
In a laboratory experiment, a fermenting aqueous solution of glucose and yeast produces carbon dioxide gas and ethanol. The solution was heated by burning natural gas in a Bunsen burner to distill the ethanol that formed in the flask.
values for an equlibruim constant suggests that at equilibrium the mixture contains a high concentration of products?
State the Lewis structure prepare a VSEPR sketch explain the geometry prepare a VB sketch and describe the bonding in the altene molecule H2CCCH2
The standard entropy of ethane (C2H6, S^0 = 229 J / (mol K) ) is higher than that of ethylene (C2H4, S^0 = 219 J / (mol K) primarily because ethane has _______ accessible ________ states than ethylene at 298 K.
an equilibrium mixture of o2 so2 and so3 contains equal concentration of so2 and so3. calculate the concentration of o2
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