Solid NH4HS is introduced into an evacuated flask at 24 ∘C. The following reaction takes place: NH4HS (s) ⇌NH3 (g) + H2S (g) At equilibrium the total pressure (for NH3 and H2S taken together) is 0.614 atm.

Which of the statements about enzymes are true? a. Nonbiological catalysts and enzymes tend to have a similar degree of reaction specificity. b. Catalysis occurs at the active site, which usually consists of a crevice on the surface of the enzyme. c.

For the simple decomposition reaction: AB (g) LaTeX: / longrightarrow⟶ A (g) + B (g), the rate = k{AB}2 ({ = [) and k = 0.85 1/MLaTeX: / cdot⋅s.

summarize what you read on the two articles by identifying the advantages and disadvantages of using plastics

Large doses of vitamin C are supposed to cure the common cold. One commercial over-the-counter product consists of 500.0-mg tablets that are 20.0% by weight vitamin C. How many tablets should one take for a 0.

A total of 1.4 moles of sodium nitrate is dissolved in enough water to make 2.0 liters of an aqueous solution. The gram-formula mass of sodium nitrate is 85 grams per mole. Determine the molarity of the solution.

One important factor in any chemical synthesis is the actual quantity of desired product obtained compared to the theoretical amount predicted on the basis of the stoichiometry of the reaction.

In the old west, a cowboy would put their ear on the railroad track to determine if a train was coming. Using this method, they could tell if the train was coming sooner than just listening for the train.

Is lead a mixture or pure substance? and is Paint a mixture or pure substance?

Which of the following is NOT a factor in determining how quickly a solute will dissolve into a solvent? A. temperature B. surface area C. agitation D. vapor pressure

Which state of matter would demonstrate the best ability to flow/pour? explain using the term particles