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Problem- To aid in the prevention of tooth decay, it is recommended that drinking water contain 1.00 ppm fluoride (F-), how many grams of F- must be added to a cylindercal water resovoir having a diameter of 4.34x10^2m and a depth of 32.63m? Answer in grams of F-How many grams od sodium flouride,NaF, contain this much flouride. Answer in grams of NaF
I am not able to solve the above problem somebody help me to get the correct answer
Which of the following ions have noble gas configurations- Fe2+, Fe3+, Sc3+, Co3+. Rank the following from most polar to least polar: N2, HF, HCN, H2O
Question- What is the maximum volume of 4.9E-5M K2CrO4 that, added to 17.0ml of a solution that is 8.6E-5M Ba(NO)2 and 5.4e-6 M Pb(NO3)2, will precipitate PbCrO4 bit not BaCrO4? For PbCrO4, Ksp=1.8e-14 and for BaCrO4, Ksp=1.2e-10
Using data in Appendix E in the textbook, calculate the standard emf for each of the subsequent reactions.
If 141 mL of wet H2 is collected over water at 24°C and a ba?rometric pressure of 738 torr, how many grams of Zn have been consumed.
Another way to reduce an aldehyde is with H2/ a metal surface . would this be an appropriate mehod to use to reduce cinnamaldehyde?
Using Linear Combinations of Atomic Orbital-Molecular Orbital Theory, draw the molecular orbital splitting diagram for CN- starting with the atomic orbitals that contain the valence electrons for each atom.
A beaker with 130 mL of an acetic acid buffer with a pH of 5.00 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100 M. A student adds 7.20 mL of a 0.370 M HCl solution to the beaker. How much will the pH..
Calculate the frequency (Hz) of the photon absorbed when the electron goes from a n= 3.00 energy level to a n= 4 energy level. Express answer in scientific notation.
A box contains a mixture of small copper spheres and small lead spheres. The total volume of both metals is measured by the displacement of water to be 425 cubic centimeters, and total mass is 4.22 kg. What percentage of the spheres are copper
Suppose that Part II of the experiment were carried out with aqueous NaOH (sodium hydroxide) instead of Ba(OH)2 to form soluble Na2SO4
The equilibrium constant of H2 combustion at 1500K surpass that of N2 combustion at 2200K by at least 2 orders of magnitude.
a disinfectant states that it will kill 99.9 of bacteria if left on for 45 minutes. what percentage of bacteria are
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