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Hydrochloric acid HCL, completely ionizes when dissolved in water. Calculate the PH of a solution containing 25 mg/L of HCL.
You have 75.0 mL of a 2.50 M solution of Na2CrO4(aq). You also have 125 mL of a 1.52 M solution of AgNO3(aq). Calculate the concentration of CrO4 2- after the two solutions are mixed together.
What is the total volume of gaseous products formed when 198 liters of propane (C3H8) react completely according to the following reaction? (All gases are at the same temperature and pressure.) propane (C3H8) (g) + oxygen (g) --> carbon dioxide (g..
vitamin tablet contains 125 mg of vitamin C (C6H8O6). How many vitamin C molecules are contained in the tablet?
What volume of 0.550 M Na3PO4 is required to precipitate all the lead(II) ions from 160.0 mL of 0.700 M Pb(NO3)2?
Given the standard free energies of formation, what is the value of for the cell reaction?
the pressure on a 625 ml sample of gas is changed from .925 atm to 1.45 atm. what is the new sample of gas?
if 58.7L of H2 are collected over water at 20C and 758 torr, what is the mass percent yield? (vapor pressure of water at 20C is 17.5torr)
Aluminum hydroxide and sulfuric acid reaction, Which reagent is the limiting reactant when 0.450 mol Al(OH)3 and 0.550 mol H2SO4 are allowed to react? How many moles of the excess reactant remain after the completion of the reaction? Please explain..
Describe the uniqueness principle and explain the three principal reasons why second period elements are notably different from their heavier counterparts.
Calculate the number of molecules inside the cell, which is 3.6um long and 1.2 um in diameter.
Certain metal cations can act as Lewis acids in water to produce an acidic solution even though the metal ion contains no hydrogen ions at all.
What would happen to the levels of mevalonate in human plasma if an individual were to go from a meat containing diet to a vegetarian diet
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