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Question- Determine the simplest formula for a compound that contains the following composition by mass: 32.79% sodium 13.02% aluminum 54.19% fluorine.
A. Na5AlF8
B. Na4Al2F7
C. Na3AlF6
D. Na2AlF6
Explain the process and each step
If a Boron-10 nucleus absorbs a proton, the radioactive nuclide that is produced may undergo alpha decay. What nuclide is produced in the decay process? Write the balanced radiochemical equations for both processes.
Limited the amount of profit SkyWest could earn.
A solution containing Pb(NO3)2 is titrated against KI solution so that PbI2 will precipitate out (ksp PbI2 = 7.9 x 10-9). Which ions will form the adsorption layer on the precipitate particles before and after the equivalence point, respectively
Problem- If 200 ml of some Pb(NO3)2 solution is mixed with 600 ml of 1.10 x 10-2 M NaCl solution, what is the maximum concentration of the Pb(NO3)2 solution added if no solid PbCl2 forms? (Assume Ksp = 2.00 x 10-5 M at this temperature.) Enter the..
What is the wavelength, in nanometers, of the light emitted when the electron in a hydrogen atom drops from the energy level n_i = 12 to n_f = 5
A 0.4430 grams sample of impure sodium nitrate was heated, converting all the sodium nitrate into 0.2864 grams of sodium nitrite and oxygen gas, Explain how to determine the percent of sodium nitrate in the original sample
Explain how would the Rf values change if you utilized pure dichloromethane no methanol as the mobile phase for the TLC separation of curcumin. What if you used pure methanol (no dichloromethane)
How would you prepare 500.0 mL of a 0.750 M solution using Sulfuric acide from 18.0 M concentrated liquid. B) Sodium carbonate powder
How many mL of 0.425 M NaOH are needed to react completely with 25.0 mL of 0.250 M Fe Cl3 solution? FeCl3 aq + 3NaOH arrow to Fe(OH)3 aq +3NaCl aq
Explain what is the energy of the photon that is emitted when the state of an electron changes from n=4 to n=2, in a hydrogen atom. (R =3.29 x 1015 Hz)
a compound contains 14.5 g of magnesium and 3.5 g of oxygen. what is the mass percent of oxygen in the
how many calories are used to heat a 50g sample of water from 8.1 degrees celius to 27.4 degrees celcius?
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