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What are the allowed values for each of the four quantum numbers: n, l, ml , and ms?
A solution contains 0.010 M each Cu(NO3)2 and Bi(NO3)3. An equal portion of 12 M NH3 is added to the solution. What is the initial concentration of OH- (in M) once the two solutions have been mixed together, but prior to any reactions occurring? Th..
Question- The half-lives of different radioisotopes are given here: Argon-44, 1/2 Life 12min; Lead-196, 1/2 Life 37 min; Potassium-44, 1/2 Life 22 min; Indium-117, 1/2 Life 43 min. If the initial amount of Argon-44 is 6.4 g, How much Argon-44 is l..
A voltaic cell is constructed from an Ni2+(aq)--Ni(s) half-cell and an Ag+(aq)--Ag(s) half-cell. The initial concentration of Ni2+(aq) in the Ni2+--Ni half-cell is [Ni2+]= 1.20X10^-2M . The initial cell voltage is +1.12V.
A sample of calcium nitrate, Ca(NO3)2, with a formula weight of 164 g/mol, has 5.00 x 1025 atoms of oxygen. How many kilograms of Ca(NO3)2 are present
A spring has a spring constant of 300N/m. Find the magnitude of the force needed to compress the spring by 0.03m.
What are the other products of this reaction in light of this reaction, explain how the chain reaction can continue.
Give the symbol of the element in the fifth period of the periodic table with five valence electrons, Give the symbol of the element in the fourth period of the periodic table with four 4p electrons
The total pressure of all gases inside a metal container is 9.8 atm. If the partial pressure of the oxygen in the container is 4.2 atm, what is the partial pres
A patient is given 0.055mg of technetium -99m, a radioactive isotope with a half-life of about 6.0 hours.
Starting with standard reduction potentials calculate the values of e cell and delta g of the following reactions:
The lowest molecular weight on the list of unknowns is formic acid, MW = 46.03 g/mol. Your titration volume should be between 10 mL and 50 mL. What is the smallest and largest masses of formic acid that would give titration volumes within these li..
The standard heat of formation \Delta H^\circ _{\rm f} is defined as the enthalpy change for the formation of one mole of substance from its constituent elements in their standard states. Thus, elements in their standard
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