What is the mass in grams of aluminum sulfide, Al2S3, if you have (3.6x10^21) S atoms? Express your answer to the correct number of significant figures, in scientific notation and include the unit with your answer. Answer: 7.13x10^-1 x (3.0x10^-1) grams x (g)

Much of the sulfur used in the United States comes from the hydrogen sulfide contaminant that makes "sour" natural gas smell bad. Hydrogen sulfide is separated from the other components of natural gas mostly by taking advantage of its acid-base reaction with aqueous ethanolamine: HO(CH,),NH,(aq)+H,S(g) → HO(CH,),NH,(aq)+HS (aq) Suppose an engineer decides to study the rate of this reaction. She prepares four reaction vessels with 167.6 mL of ethanolamine solution and 20.9 g of hydrogen sulfide gas each. The volume and temperature of each vessel is shown in the table below. Arrange the reaction vessels in decreasing order of initial rate of reaction. In other words, select a "1" next to the vessel in which the engineer can reasonably expect the initial rate of reaction to be highest, a "2" next to the vessel in which the initial rate of reaction would be next highest, and so on. vessel volume temperature A B C D 5.0 L 5.0 L 5.0 L 5.0 L 49, °C 48. °C 51. °C 50. °C X initial rate of…

Gold(III)hydroxide is used for electroplating gold onto other metals. It can be made by the following reaction (note the equation is unbalanced) KAuCl4(aq) + NaɔCO3(aq) + 3H,O(1) - Au(OH);(aq) + NaCl(aq) + KCI(aq) + CO2(g) To prepare a fresh supply of Au(OH), a chemist at an electroplating plant has mixed 20.00g of KAUC1, with 25.00g of Na CO3 (both dissolved im excess water) a. How many grams of NaCO: will b'required to react with KAUCI4? (only 3 decimal places) g of NanCO b. what is the maximum number of grams of Au(OH); than can be formed? (only 2 decimal places) Activate Windows g of Au(OH); 11:04 Links 20°C 23-Nov- ch Ipcert | Delete

Magic Acid® is the commercial name for a 1:1 mixture of fluorosulfonic acid, HSO3F, and antimony pentafluoride, SbF5, that generates H2SO3F+ cations – this last species qualifies as a superacid. Can Magic Acid® be diluted in water and retain its superacid property? Justify your answer and include at least one chemical equation.

In sediments and waterlogged soil, dissolved O2 concentrations are so low that the microorganisms living there must rely on other sources of oxygen for respiration. Some bacteria can extract the oxygen in sulfate ions, reducing the sulfur in them to hydrogen sulfide gas and giving the sediments or soil a distinctive rotten-egg odor.Write the net ionic equation for the reaction under acidic conditions (H3O+) that releases O2 from sulfate and forms hydrogen sulfide gas. Use water as the reactant in the half-reaction that describes the formation of oxygen.

Give the answers that should be filled in the blanks below: Acetic acid solution: pH = 5.80; (a) [H+] =         M; (b) [OH-] =          M Ammonia solution: [H+] = 5.90 x 10-9 M; (c) pH =           ; (d) pOH =

Sodium hydrogen carbonate (NaHCO3), also known as sodium bicarbonate or "baking soda", can be used to relieve acid indigestion. Acid indigestion is the burning sensation you get in your stomach when it contains too much hydrochloric acid (HCI), which the stomach secretes to help digest food. Drinking a glass of water containing dissolved NaHCO3 neutralizes excess HCl through this reaction: HCl(aq) + NaHCO3(aq) NaCl(aq) + H2O(l) + CO₂(9) The CO2 gas produced is what makes you burp after drinking the solution. Suppose the fluid in the stomach of a woman suffering from indigestion can be considered to be 250. mL of a 0.076 M HCl solution. What mass of NaHCO3 would she need to ingest to neutralize this much HCl ? Round your answer to 2 significant digits. x10 G

Write the balanced NET ionic equation for the reaction when aqueous MgSO4 and aqueous Ba(NO3)2 are mixed in solution to form aqueous Mg(NO3)2 and solid BaSO4. Be sure to include the proper phases for all species within the reaction.

Sodium hydrogen carbonate NaHCO3, also known as sodium bicarbonate or "baking soda", can be used to relieve acid indigestion. Acid indigestion is the burning sensation you get in your stomach when it contains too much hydrochloric acid HCl, which the stomach secretes to help digest food. Drinking a glass of water containing dissolved NaHCO3 neutralizes excess HCl through this reaction: HCl(aq)+NaHCO3(aq)→NaCl(aq)+H2O(l)+CO2(g)  The CO2 gas produced is what makes you burp after drinking the solution. Suppose the fluid in the stomach of a woman suffering from indigestion can be considered to be 200.mL of a 0.089M HCl solution. What mass of NaHCO3 would she need to ingest to neutralize this much HCl? Be sure your answer has the correct number of significant digits.

Be sure to answer all parts. Consider the following balanced redox reaction (do not include state of matter in your answers): 2CrO₂ (aq) + 2H₂O()+6C10 (aq) → 2CrO42 (aq) + 3Cl₂(g) + 40H (aq) (a) Which species is being oxidized? (b) Which species is being reduced? (c) Which species is the oxidizing agent? (d) Which species is the reducing agent? (e) From which species to which does electron transfer occur? Electrons transfer from to