CHM ENG 179 Study Guide - Midterm Guide: Chemical Engineering, List Of Semiconductor Materials, Scanning Tunneling Microscope

Need Help on how to find the answers. I don't think mine are right.

A student prepared the following mixtures and measured the time each took to react. Calculate the average time for each mixture (in seconds).

To complete the following table:

Determine the initial concentration (molarity) of each reagent using the equation:

The M_stock and V_stock for each reagent are given in problem 1. The total volume is 50 mL for each trial.

Calculate the rate of the reaction using the equation

Determine the rate law by finding the orders of the reaction (m, n, and p).

Rate = k[acetone]^m[H⁺]ⁿ[I₂]^p

Use the rate law determined in problem 3 to calculate the rate constant, k for each mixture. Find the average rate constant.

We will now consider reaction mixture 5. Calculate the molar concentrations of each reactant as done in problem 2.

Use the concentrations for Mixture 5 you just calculated, along with the orders of the reaction (m, n, and p, from problem 3), and the average rate constant (problem 4), to solve Eq. 2 for rate. This is a prediction of how long it will take for the I₂ color to disappear from your mixture.

Rate = k[acetone]^m[H⁺]ⁿ[I₂]^p

Predicted Rate:____________________

To find the predicted time, recall. Use the rate from problem 5 and the molar concentration of [I₂]₀ from problem 5 to solve for the predicted time.

Chemical engineering.
Do number 1

Can someone please help me figure this out? We have to figure out an experiment to get at least 90% yield of compound B.

These are the topics covered that we can use to plan this experiment:

1) Basic Operations: Using a weighing balance; Separation, Density.
2)Separating the Components of Panacetin - Acid-Base Reactions, Stoichiometry Techniques: Separation, extractions
3) Identifying the Constituents of Panacetin: Key techniques: Recrystallization and Melting point
4)Synthesis of Salicylic acid . Key techniques: Reflux, Recrystallization, Melting point
5) Separation of Unknown by Chromatography-Concepts: Polarity, capillary action, Technique: Column and Thin layer chromatography
6)Dehydration of cyclohexanol to an cycloalkene. Key Concepts: Preparation, and Reactions Hydration, Halogenation & Hydro halogenation of Alkenes;
7)Polarimetric Analysis of Unknown Sugars. Key concepts: Stereochemistry Techniques: Optical rotation
8)Properties of organic compounds -Concepts: Solubility, Hydrogen bonding; Technique: Distillation
9)Preparation of 2-chloro-2-methylbutane–An Sn1 reaction - Key concepts: Nucleophilic Substitution reactions