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What is the frequency of a photon having an energy of 8.56 x 10-16 J?
(c = 3.00 x 108 m/s, h= 6.63 x 10-34 J • s)
A) 3.88 x 1026 Hz
B) 2.32 x 10-10 Hz
C) 1.29 x 1018 Hz
D) 2.58 x 10-27 Hz
E) 2.57 x 10-7 Hz
When calculating the density of your regularly shaped object, which measurement will limit your final result?
compare alkalide ion with the neutral alkali atom.under appropriate conditions alkali metals a can be reduced to yield
the presence of other metal ions from the dissolved brass interfere with the determination of copper in this experiment?
Which of the following will not have ionic bonds?
Develop a scheme to separate Ag+, Mg2+, and Pb2+ cations in solution and draw a flow chart that depicts your scheme.
How many joules of heat could be produced from a 170 calorie package of crackers
Using the Henderson Hasselbalch equation, calculate the amount of monosodium phosphate (NaH2PO4, MW=120.01 g/mol) and disodium phosphate (Na2HPO4, MW=141.96 g/mol) required to prepare 100.mL of a 200. mM phosphate bugger of pH 6.5
at a certain temperature 0.200 moles of no 0.300 moles of cl2 and 0.500 moles of clno were placed in a 25.0 l vessel
Calculate the pH change that results when 11 mL of 5.8 M NaOH is added to 800. mL of each the following solutions.
Calculate the molarity of urea in a soln prepared by dissolving 16 g of urea (MM= 60.0 g/mol) in 39 g of H20. The density of the soln is 1.3 g/ml.
Calculate How many mL of the HCl solution was required for the titration.
one of the components of pineapple flavor is ethyl butyrate which has the empirical formula c3h6ox. its vapor took 162
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