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How many moles ofNa+ ions are there in 1 mole ofNa2SO4 ? Do you simply have to divide the Relative Atomic Mass of Na bythe Relative atomic mass of Na2SO4 ?This would give the answer of 0.16?
The electron in the n=1 state of a hydrogen atom absorbs a photon with an energy of 2.12x10^-18 J. What is the final state of the electron
determine how many pounds a citizen would have to weigh in order to have ice melt beneath his/her ice skates. Do a bit of research and find out the area if cibtact betweeb a typical ice skating blade and the ice surface
What is the molarity of a solution of HCl if 2.0 L of it are needed to react with 20g of NaOH?
A wastewater solution has a concentration of 4.52e-2 M Ag ion. If you have 950,000 gallons of this waste solution, how many grams of solid MgCl2 need to be added to reduce the remaining dissolved Ag to a level of 5 ppb
What is the theoretical yield when 0.040 g benzophenone is added to 1 mL methyl alcohol?
If the freezing point depression of water is -1.86 degrees/m, what would be the freezing point of this solution
Aluminum dissolves in HCL according to the equation written below, whereas copper does not react with HCL: 2Al+6HCL ---> 2AlCl3 + 3H2 a 35 gram sample of copper-aluminum alloy is dropped into .750 L of 3M HCl, and the reaction above proceeds as fa..
Make an energy level diagram for the nueclear spin states in a magnetic field. Calculate the transition frequency in a 0.1 T field.
for the reaction 2a b --gt 2c if b is initially 4.0m and 2min later is 3.0m what is the rate of appearance of
Starting with only the solid, it is found that at 40 degrees Celsius the total gas pressure is .563 atm. Calculate the partial pressure of NH3 and CO2.
Which of the following electron transitions corresponds to emission of the longest wavelength light
Consider the titration of 100ml of .100M H2NNH2 (Kb=3.0*10^-6) by .200 M HNO3. Calculate the pH of the resulting solution after the following volumes of HNO3 have been added
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