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The frequency of the middle F note on a piano is 349.23 Hz. What is the wavelength of this note in centimeters? The speed of sound in air is 343.06 m/s.
calculate the wavelength of the emitted radiation if an electron in a hydrogen atom went from n = 4 to n = 1. in what region of the electromagnetic spectrum(e,g.X-ray, visible, infrared) would this radiation lie?
starting with solid sodium chloride, how would you make one liter of 2.000 ppm sodium chloride solution
A Sample of 4.6434g of benzoic acid, C7H6O2, is dissolved in 50.0033 g of camphor. What is the freezing point of the resulting solution. For camphor, Tf= 179.5 C, Kf = 40C/m
q1.if 21.64ml of 9.44times10-4m kmno4 solution is required for the titration calculate how many mgs of ca2 are present
write the molecular equation ionic equation net ionic equation and indicate the spectator ions for the precipitation
A can of Mountain Dew soda contains 46 g of sugar. Assuming that your body completely digests this sugar, 170 kcal of heat energy is available from the sugar. Approximately how many grams of water will you have to evaporate as sweat to lose this 1..
The calorimeter contains 1.00 kg of water (heat capacity of H2O = 4.184 J/g°C) and the heat capacity of the empty calorimeter is 0.10 kJ/°C. How much heat is released per gram of oil shale when it is burned?
What is the molar mass of a compound if 5.96g of the compound dissolved in 25g of chloroform solvent has a boiling point change of 4.80 c. The boiling point constant for chloroform is 3.63 c/m.
An unknown metal M reacts with sulfur to form a compound with the formula MS. If 4.37 g of M reacts with 2.51 g of S, what are the names of M and MS?
Would you expect the carotenoid pigment fraction to come off sooner or later than it did with 95:5 Hexane:Acetone? What effect would you expect if you used 100% hexane instead
What types of bonds are responsible for the secondary structure of a protein? How would the addition of a heavy metal affect the secondary structure of a protein?
How many molecules of each gas are present in 7.13 L of the sample at 58 degrees Celsius and 3.11 atm. Enter your answer in scientific notation.
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