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Problem- Assuming that the smallest measurable wavelength in an experiment is 0.630 fm (femtometers), what is the maximum mass of an object traveling at 647 m•s-1 for which the de Broglie wavelength is observable?
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How many moles of solute are present in each of the following solutions. (a) 145mL of 0.25M NaHCO3 (b) 631.0mL of 2.25M H2SO4
What is the pH at the equivalence point when 30.0 mL of 0.20 M HCl are titrated with 0.45 M NaOH at T = 298 K? Kw = 1.00 x 10-14.
Decide whether or not each of the following metals dissolves in 1 {\rm M} {\rm{HNO}}_3. For those metals that do dissolve, write a balanced redox reaction showing what happens when the metal dissolves.
Calculate the solubility of MnOH2 in grams per liter when buffered at pH=7.0 and pH=9.8 and pH=11.6
The first steps in the radioactive decay of 257Uuh involves the rapid and successive emission of 4 alpha particles
The mass of a cube of iron is 338 g. Iron has a density of 7.87 g/cm3. What is the mass of a cube of lead that has the same dimensions?
Calculate the radiation dosage (in grays) for an 57-kg person that is exposed for 3.0 seconds to a 3.0 Ci source of beta radiation.
a 24.9 ml volume of hcl reacts completely with 55.0 ml of aqueous na2co3. the reaction is as follows2hcl aq na2co3aq-gt
Liquid HCN is unstable with respect to trimer formation. What would be the structure of this trimer
A gas occupies a volume of 140 mL at 35 celcius and 97 kpa. What is the volume of the gas at conditions of STP?
Derive the general expression for the work per kilomole of a van der waals gas in expanding reversibly and at a constant temperature
A solution is made by mixing 506 mL of water and 198 mL ethanol. What is the concentration of ethanol in units of volume/volume percent.
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