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The concentration of SO42- (aq) in a sample of river water can be determined using a precipitation titration in which a salt of Ba+ (aq) is the standard solution and BaSO4 (s) is the precipitate formed. What is the concentration of SO42- (aq) in a 53.5 mL sample if 6.05 mL of a 0.00100 M Ba2+ (aq) solution is needed to precipitate all the SO42- (aq) in the sample?
According to the following reaction, how many moles of oxygen gas are necessary to form 0.221 moles nitrogen monoxide
At a certain temperature and pressure 4.2 L of N2 reacts with 6.3 L of O2. If all the N2 and O2 are consumed, what volume of N2O3, at the same temperature and pressure, will be produced? (L)
Which of the following observations is the strongest argument that in favor of the hypothesis that protein structure and function are related?
each successive hydrogen is more easily substituted until the trihalo species is obtained. Explain
My paper says that will be only one isomer out of hexabromobiphenyl, C12H4Br6 And it states also that one phenyl group is still the active substituent when it is bromized. I wonder why it is only one isomer and I will be so thankful if you can dra..
A procedural change would be essential if a boy want to determine the tomato juice's acidity by titrating a sample of juice with NaOH(sodium hydroxide) solution Briefly explain What change would you make to the procedure ?
An athlete takes human growth hormone (HGH) that enhances his ability to have the best time of any Olympic marathon runner in history.
A gaseous mixture containing 0.150 mol fraction of carbon tetrachloride (CCl4) and 0.850 mol fraction of dry air is initially at 65.0°C
The element gallium has two naturally occurring isotopes with masses of 68.9300 amu and 70.9200 amu. What would be the fractional abundance of the first isotope, if the atomic weight was 69.6518 amu
The gas phase irreversible first-order reaction A----> 3B , is carried out in PFR where the feed is equal molar in A and inerts. the conversion under these circumstances is 50%.
Draw a reaction coordinate diagram for each of the following nucleophilic addition-elimination reactions. a. the nucleophile being a weaker base than the leaving group
The molecular weight for chlorophyll a is 893.49 g/mol. If the molar concentration of the solution is .00000387, then what is the concentration of the solution in ppm (parts per million)
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