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How many moles of NaBrO should be added to 1 l of 0.200 M hypobromous (HBrO) acid to obtain a buffer of pH 8.80 (assume no volume change occurs when solid NaBrO is added)? The pka of the acid is 8.70.
What iron phase is characterized by body-centered cubic, a solid solution of carbon and/or alloying elements in FCC iron (carbon ranges from 0 ~ 0.025%)
Compounds of boron and hydrogen are remarkable for their unusual bonding and also for their reactivity. With the more reactive halogen
When the one ore lead (ii) sulfide burns in ixygen, the products are lead (ii) oxide and sulfur dioxide A. How many grams of oxygen are required to react with 0.126 mole lead (ii) sulfide?
what is the frequency of light needed to eject electrons from a metal is called the threshold frequency nu0. find the
A 128.2-mL sample of a 0.15 M solution of H3PO4 is titrated with 0.18 M NaOH. What volume of base must be added to reach the third equivalence point
Which of the following correctly describes the equalibrium constant for the gas phase reaction between H2 and O2 to form gaseous H2O? a.) Kc = [H2O]/[H2][O2] b.)Kc = [H2O]^2/[H2][O2] c.) Kc = [H2O]^2/[H2]^2[O2] d.) Kc = [H2][O2]/[H2O] e.) Kc = [H2..
the reaction of the Grignard reagent containing more carbon atoms with the carbonyl compound containing less carbon atoms andscheme two involves the reaction of the Grignard reagent containing less carbon atoms
the molar heat capacities of iron and gold are 25.19J/(mol*degrees celsius) and 25.41 J/(mol*degrees celsius), respectively. what is the final temperature of the water and pieces of metal?
How might you use 13C NMR spectroscopy to determine if the brominated product is contaminated with some unreacted starting material (during the bromination of trans-cinnamic acid)
show the acid catalyzed enamine product formation from 2-butanone and diethylamine
How many grams of solute are needed to prepare the following solutions? 1. 135.0mL of 22% (w/v) glucose (C6H12O6) 2. 60mL of 4.6% (w/v) (KCl)
what are the rates of production of P4 and H2 in this experiment?
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