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In the reaction of silver nitrate and hydrosulfuric acid (H 2 S) solutions, forming solid silver sulfide and nitric acid; 28.1 g silver nitrate and 3.50 g H 2 S react until the limiting reactant is gone. Calculate the number of grams of silver sulfide that will precipitate and identify the limiting reactant.
The standard molar heat of formation of water is -285.8 kJ/mol. Calculate the change in energy required in making 50.0 mL of water from its elements under standard conditions.
Dissolve Ca(OH)2(s) into a 100 mL solution containing 2.00g of dissolved CaCl2. The satureated Ca(OH)2 solution has an equilibrium pH of 11.68. Determine the molar solubility and the Ksp for Ca(OH)2 from this single pH measurement.
Know the characteristics of molecules that form hydrogen bonds as well as how this capacity affects the ability of the molecule to dissolve in water.
comment on burning diesel fuel as a sustaniable practice both in terms of how things have improved and in terms of
Subsequent to 57 min, 39.0% of a compound has decomposed. Explain what is the half-life of this reaction assuming first-order kinetics
when acetaldehyde at a pressure of 364 mmhg is introduced into an evacuated 500. ml flask at 518degc the half-life for
When treated with Duquenois reagent, the extract of a suspect substance turned gray. How could you tell whether the substance contained marijuana, tobacco, or tea leaves ?
The initial solution pH depend on both the Ka and the concentration of the weak acid, so measuring the initial pH is insufficient to determine both these solutions.
From the Mn concentrations (3.56ppm and 3.71ppm) and uncertainty
Calculate the pH at the equivalence point if 25.00 mL of 0.010 M barbituric acid (HC4H3N2O3) is titrated with 0.20 M NaOH. (Ka barbituric acid = 1.0 x 10^-5).
You tested Lysol cleaner in the lab with the FeCl3 reagent. A definite color change was observed. What conclusion can you make about the Lysol
What is the theoretical yield of MgO if0.5870grams of Mg react in excess O2gas?
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