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What is the relationship of the successive equivaleance point volumes in the titration of a polyprotic acid?
a 325 ml sample of solution contains 25.3 g of CaCl2. calculate molar concentration of Cl- in this solution
the heat of vaporization of isopropyl alcohol c3h7oh is 42.1 kjmol. how many grams of water at 0oc could be frozen to
Calculate the volumetric size of a water molecule in vapor, assuming 1 mole of the vapor occupies 22.4 L, as if the vapor were an ideal gas.
Solid aluminum reacts with chlorine gas to produce solid aluminum chloride. If 2.70 grams of aluminum and 4.05 grams of chlorine gas were mixed, what maximum mass of aluminum chloride could be produced?
NH3 is a weak base (Kb = 1.8 × 10-5) and so the salt NH4Cl acts as a weak acid. What is the pH of a solution that is 0.049 M in NH4Cl
Calculate the pH at 25 degree C of .25 aqueous solution of phosphoric acid (H3PO4). (Ka1,Ka2, and Ka3 for H3PO4 are 7.5x10^-3, 6.25x10^-8 and 4.8X10^-13
Select all of the following that would be acceptable conjugate acid-base pairs to use in the preparation of a pH=9.8 buffer.
For each of the following, calculate the concentration of Tris, Tris-H+ and the pH of the solution in each of the following solutions.
The phase diagram starts at 0K and gradually increases from 100k to 200k and as it hits 200K, the line splits apart increasing in pressure
You add 10.0 mls of 0.100 M H2SO4(aq) to 10.0 mls of 0.100 M NaOH(aq). How many moles of water are formed. Is there a limiting reagent. Select one: a. 0.00200 moles b. 0.00100 moles c. 0.200 moles d. 0.100 moles
How many grams of dry NH_4Cl need to be added to 1.60 L of a 0.700 it M solution of ammonia, NH_3, to prepare a buffer solution that has a pH of 8.62? K_b for ammonia is 1.8 * 10^{-5}.
Silver chloride, often used in silver plating, contains 75.27% Ag by mass. Calculate the mass of silver chloride required to plate 155 mg of pure silver.
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