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By titration it is found that 43.1mL of 0.169 M NaOH(aq) is needed to neutralize 25.0mL of HCl(aq). Compute the concentration of the HCl solution.
In the spinach extraction, indicate which of the following solvents may or may not be suitable as a replacement for the hexane used in the experiment: acetone, diethyl ether, ethanol. Briefly explain your choices.
What is the pH of a solution that has a formic acid (HCHO2) concentration of 0.39 and a potassium formate (KCHO2) concentration of 0.12? The Ka for formic acid is 1.7 x 10-4.
the shark tank at an aquarium houses 5 sharks that deplete theaquarium water of a total of 50.00 grams of oxygen per
A student carry out an experiment in which (II) chloride Hexahydrate reacts with ammonia to produce hexamminenickle (II) Chloride (formula = Ni(NH3)6Cl2) as well as water if 6.024 grams of hexamminenicle (II) Chloride are produced, what is the per..
Calculate the mass of oxygen per gram of sulfur for sulfur dioxide. B) Calculate the mass of oxygen per gram of sulfur for sulfur trioxide.
Determine which enantiomer of 2-iodo-3-phenylbutene gives the E product (2R, 3R or 2S, 3R), and explain clearly (using unambiguous diagrams) why that is the case.
Using standard enthalpies of formation, calculate the standard enthalpies of the following reaction: 4HCl(g)+O2(g) -------> 2Cl2(g) + 2H2O(g)
There are two ways of utilizing hydrogen as fuel in automobiles - as the replacement of gasoline in internal combustion engine or in a fuel cell. Can you explain why a fuel cell is more efficient using the Second Law of Thermodynamics
Draw the condensed structural formula of benzyl acetate and circle the acetic acid part and the phenyl part.
a cylinder storing oxygen at 20 mpa at 0 degrees celcius might explode if the pressure exceeds 50 mpa. what is the
What mass of oxygen (in grams) reacts when 13.2 g of methanol (CH3OH) are combusted in oxygen to produce carbon dioxide and water
The solubility product of PbBr2 is 8.9 10-6. Determine the molar solubility in the following. (a) pure water
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