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One radio station operates on an assigned frequency of 88.1 megahertz while another operates on an assigned frequency of 1460 kilohertz. What is the ratio of the larger to smaller value?
In an experiment for measuring water hardness in a water sample, using Atomic Absorption Spectrophotometry, I obtained a value of 173.74 ppm hardness for my water sample.
The standard cell potential of the zinc-air battery is 1.65V. If at 25 dgrees celsius the partial pressure of oxygen in the air diffusing through its cathode is 0.21 atm.
Calculate the mass, in grams for a gold sample that absorbs 225 J to change its temperature from 15 Celsius to 47 degrees celsius.
If 3.00 moles of ZnS are combined with 4.00 moles of O2 how many moles of ZnO can be produced and how many moles of the excess reactant will be left over?
We are asked to write the balanced equation when glucose is reacted with ammonium chloride + epichlorohydrin + isopropyl alcohol. What is the ultimate end product? Hopefully it is supposed to be some form of a quaternary ammonium radical attached to ..
If 25.0 mL of AgNO3 is needed to precipitate all the Cl- ions in a 0.795 mg sample of KCl(forming AgCl), what is the molarity of the AgNO3 solution.
Determine what would be the final temperature if thirty grams of Al at 95 degrees Celsius are added to 100 grams of H 2 O at 25 degrees Celsius?
Assume a wind turbine with a hub 50 meters above the ground, a rotor diameter of 75 meters and a wind-conversion efficiency of 25 percent.
What is the concentration of unknown acid solution? Write the neutralization reaction, balance it, name the products THEN Solve the problem above.
magnesium sulphate MgSO4 has an observed osmotic pressure =7.6 atm at the temperature of twenty five degree celsius. Determine the observed van't Hoff factor?
If One gram (1.5 g) of glyceryl trioleate is completely hydrogenated.How many grams of hydrogen was used in the process.
a block of aluminum with the volume of 96.5 g absorbs 65.3 J of heat. If the initial temperature is 31.2 degrees celcius, what is the final temperature.
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