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Silver tarnishes in the presence of hydrogen sulfide (which smells like rotten eggs) and oxygen because of the following reaction: Ag + H2S + O2, Ag2S + H2O .
a) How many grams of silver sulfide can be formed from a mixture of 1.1 g Ag, 0.14 g H2S, and 0.080 g O2?
b) How many more grams of hydrogen sulfide would be needed to completely react all the silver?
Radioactive substances decay by first-order kinetics. Explain how many hours would be required for a sample containing sodium-24 to decrease to 50.04% of its initial activity? Explain the half-life of sodium-24 is 1.50e1 hours.
A gas is confined to a container with a massless piston at the top. (Figure 2) A massless wire is attached to the piston. When an external pressure of 2.00 is applied to the wire, the gas compresses from 5.90 to 2.95
A 1- L flask is filled with 1.40 g of argon at 25?. A sample of ethane vapor is added to the same flask until the total pressure is 1.05 atm.
HZ is a weak acid. An aqueous solution of HZ is prepared by dissolving 0.020 mol of HZ in sufficient water to yield 1.0 L of solution. The pH of the solution was 4.93 at 25.0 °C.
Phosphorus pentachloride decomposes to phosphorus trichloride at high temperatures according to the reaction: PCl5(g) ?PCl3(g) + Cl2(g)
What would be the structure and name of the product after completely oxidizing all double bonds of the following with hydrogen peroxide (H2O2)
At a certain temperature, the Kp for the decomposition of H2S is 0.726 H2S = H2+S initally only H2S is present at a pressure of 0.126 atm in a closed container. what is the total pressure in the container at equilibrium?
Question- It is customary to adjust the pH of 0.5M nitric acid solutions to pH 4.5 with 6M Sodium Acetate. What volume of 6 M sodium acetate should be added to 10mL of 0.5 M nitric acid to give the desired pH
What is the pH at the equivalence point of a weak base-strong acid titration if 20.00 mL of NaOCl requires 28.30 mL of 0.50 M HCl? Ka=3.0x10-8 for HOCl.
how will you use the known compounds that are out in the lab to help you find the identity of your unknown compounds
0.4768 g of oxalic acid dihydrate (H2C2O4 • 2H2O) was weighed out and titrated with sodium hydroxide (NaOH) according to the procedure in the handout. Vi was recorded from the buret as 5.91 mL. Vf was recorded from the buret as 42.28 mL. Calculate..
Write the Complete Ionic Equation for the reaction between Magnesium Nitrate and Potassium Hydroxide
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