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A local AM radio station broadcasts at an energy of 5.84×10-31 kJ/photon.
Calculate the frequency at which it is broadcasting.
Frequency = KHz
A certain amount of glucose, C6H12O6 burned in oxygen, and produced 22 grams of carbon dioxide, CO2. How many grams of water was produced at the same time?
What was the highest alcohol density reported and what was the lowest alcohol density reported by the two students?
ch4 2o2 -gt co2 2 h2ohow many liters of ch4 at 27 degrees c and 1.5 atm are required to react with 1 mole of oxygen?v
A solution is to be prepared with a sodium ion concentration of 0.487 mol/L. What mass of sodium phosphate (g) is needed to prepare 1.30 liters of such a solution
Silver has two isotopes and an average atomic mass of 107.87 amu. If 48.18% of Ag exists as Ag-109 (108.9047 amu), what is the identity of the other isotope?
Construct a neat and compact table, including title and footnotes if required, to summarise the following information taken from rough notes
The initial concentration of a reactant in a first order reaction is 0.620 molar. What will be its concentration after 3 half-lives
A 3.50g sample of histidine dihydrochloride (fw 228.08g/mol) in water and diluting to a final volume of 50.00ml. The resulting solution is then titrate with 0.500M NaOH. calculate the pH at each of the following points
Lysozyme is an enzyme that breaks down bacterial cell walls. It is found in tears and egg whites and elsewhere. A solution containing 0.150 g of lysozyme in 210 mL of water solution has an osmotic
How many millilitres of concentrated sulphuric acid which 98 mass% h2so4 and has a density of 1.842G/ML,are requied to prepare 500ML of a 0.175m solution of h2so4?
Problem- How many grams of dry NH4Cl need to be added to 1.50L of a .600M solution of ammonia NH3 to prepare a buffer solution that has a pH of 8.51. Kb for ammonia is 1.8 X 10-5, What is the mass of NH4Cl
.05 moles of PCl5 and 5 moles of PCl3 are introduced into an evacuated 1L chamber. Calculate the equilibrium concentration of PCl3 knowing that K=33.3
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