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A metal has a threshold frequency of 7.5x10^14 hz. Determine the wavelength (m) of the electron emitted from the metal exposed tolight of wave length 206 nm.
calculate the mass percent of a rm nacl solution in which 110 g of rm nacl is dissolved in 2.41 l of water at 25 rm
If this arsenic is present as arsenate, AsO4^3-, what mass of sodium arsenate would be present in a 1.10L sample of drinking water that just meets the standard
A student mixes four reagents together, thinking that the solution will neutralize each other. The solutions mixed together are 53.6 mL of 0.129 M hydrochloric acid, 104.1 mL of 0.215 M of nitric acid, 501.5 mL of 0.0126 M calcium hydroxide
determine the mass of a mixture of 1.33x1024 formula units of sodium sulfate 1.500 moles of water and 3.77g of silver
How many constitutionally isomeric monochlorides can be formed on free-radical chlorination of 2,3,3-trimethylpentane? 2,3,3-trimethylpentane + Cl2 Heat
Use the letter from the reagent table for inorganic reagents and write the IUPAC substitutive name for the bromoalkane.
If an insufficient amount of liquid unknown had been used, how would this have affected the value of the experimental molar mass?
How many grams of NaCl would you need to add to a a 1 L water sample (pH=7) so the ionic strength equaled 0.1M
Give the percent yield when 28.16 g of CO2 are formed from the reaction of 4.000 moles of C8H18 with 4.000 moles of O2. 2 C8H18 + 25 O2 ? 16 CO2 + 18 H2O
700 molecules of c14 labeled glucose are given to yeast cells that are producing alcohol. how many 14c atp molecules
A cell composed of a platinum indicator electrode and a silver-silver chloride reference electrode in a solution containing both Fe2 and Fe3 has a cell voltage of 0.738 V. If the silver-silver chloride electrode is replaced with a saturated calome..
the atomic weight of a newly discovered el- ement is 98.225 amu. it has two naturally occuring isotopes. one isotope
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