S
  1. study help
  2. subject categories
  3. sciences
  4. chemistry
  5. march 2020
  6. 02

Chemistry Questions and Answers March 02, 2020

Expert-verified solutions to help you succeed

Write the balanced, complete, and net ionic equation for each PRECIPITATION reaction. Show the equations below: CuSO4 + NaOH -> Balanced: C.I.E.: N.I.E.: CuSO4 + Na2CrO4 -> Balanced: C.I.E.: N.I.E.:

A number of reactions that take place on the surfaces of catalysts are zeroth order in the reactant. One example is the decomposition of ammonia on hot tungsten. In an experiment, the partial pressure of ammonia decreased from 21 kPa to 10 kPa in 770 s. (i) What is the rate constant for the zeroth- order reaction? (ii) How long will it take for

Milk is pasteurized by heating it rapidly in a pasteurizer to temperatures high enough that most of the bacteria in the milk are killed. a) Is the pasteurizer a Mixer, Reactor, Splitter, or Separator b) Write material balance equations for milk, live bacteria, and dead bacteria. Simplify each equation by crossing out terms that you assume are

Given the data calculated in Parts A, B, C, and D, determine the initial rate for a reaction that starts with 0.85 M of reagent A and 0.90 M of reagents B and C? For the reaction A+B+CD+E , the initial reaction rate was measured for various initial concentrations of reactants. The following data were collected: Trial [A] ( M ) [B] ( M ) [C] ( M )

Nitromethane, CH3NO2, is a fuel used in drag racing cars. Consider the particulate diagram and answer the following questions. ,Part 1 Write a balanced chemical equation describing the combustion of nitromethane.The nitrogen in the reactant is converted into N2(g) during the reaction. Part 2 Given the mixture reactants in the particulate model,

How many particles will be deposited on a 200 mm wafer in an ISO Class 2 cleanroom in 1 hour.

In touay capillary tube d) all of the above 5. In TLC, separation results from a) differences in the rates at which the compounds in a mixture react te with the adsorbent b) differences in the rates at which the compounds in a mixture react with the eluting solvent c) differences in the rates at which the compounds in a mixture advance up the

7. Among the mentioned above solvents choose the most polar solvent and write why you chosen this one a) thyl acetate b) hexane c) chloroform d) diethyl ether

Eluotropic series of solvents is?

Predict the order of elution for the following compounds by normal phase TLC techniques. State your reasoning. NH2 NH2 NH2 NH2 NH2 a) b) c) NH2 d)