TASK: Write a research report in about 500 words, in which you will: Explain the origins of pollutants in natural water. Identify the allowed concentrations of pollutants in drinking water. Explain the origins and consequences of water hardness. Outline methods for softening hard water. Describe the technology involved in purifying drinking water and treating wastewater
Explain the effects of any chemical except vinyl chloride that exhibits this mechanism.
Medical Toxicology Vinyl chloride is an example of a hepatotoxicant that at different exposures has different effects. Explain the effects of any chemical except vinyl chloride that exhibits this mechanism.
Identify the relevant peaks for each of the FTIR spectra and record the position and associated functional group for each in the FTIR tables.
Interpreting FTIR & MS Spectra Interpreting FTIR & MS spectra is a skill that often requires some amount of practice, which, in turn, necessitates access to a collection of FTIR & MS spectra. Virtual ChemLab has a spectra library containing more than 700 FTIR & MS spectra. In this assignment, you will take advantage of […]
Create a step-by-step process for creating a standard solution of your choosing from solid(BY WEIGHT) Sodium Hydroxide (NaOH), the concentration of this solution must not be greater than 2 M.
Create a Standard Solution from solid NaOH Create a step-by-step process for creating a standard solution of your choosing from solid(BY WEIGHT) Sodium Hydroxide (NaOH), the concentration of this solution must not be greater than 2 M. SHOW ALL STEPS AND CALCULATIONS NEEDED. Make sure step by step Procedure and simple to follow.
Are there any differences in the percentage of males and the percentage of females in each of the four BMI categories?
MODULE 6 ASSIGNMENT. BODY MASS INDEX RESEARCH QUESTIONS 1. Is there any difference between the mean BMI of males and females? [DO A T-TEST ON THE DATA SORTED BY GENDER] 2. Is there any correlation (positive or negative) between BMI and age? (a) For males, is there any correlation between BMI and age? (b) For […]
Determine which solution, buffered or unbuffered reacted with more moles of NaOH when the equivalence point was reached?
THE BUFFER IN LEMONADE Goals– learn how to use pH sensor and monitor changes in the pH of a buffer; observe the effects of buffering on the pH titration curve Purpose– the purpose of this experiment is to titrate the lemonade drink and the 0.010 M citric acid with a base solution of sodium hydroxide, […]
Determine how doubling the concentration of the sodium iodide changes the rate ? Calculate the order of the reaction with reference to silver nitrate concentration, n.
Nucleophilic substitution reactions (SN2) : Objective: To determine the factors that affect the rate of SN2 reactions Procedure All test tubes must be CLEAN and dry. Section I: Effect of substrate structure Objective : To determine the influence of the structure of the substrate (primary/secondary/tertiary halide) on the rate of substitution Substrates to be used […]
Determine solubility of each solid substance in each of the five solvents at room temperature ; Identify solvents that are not suitable for recrystallization.
Isomerization Experiment 1 Solvent of crystallization Objective: To select a solvent appropriate for recrystallization of (a) trans-stilbene, (b) 9fluorenone or (3) benzoic acid Each student will be assigned a compound (one of the above three compounds) to find a solvent suitable for its crystallization; Solvent choices n-hexane, toluene, acetone, ethanol and water Pre-Lab [Obtain the […]
Balance the following chemical reactions.What is the percent composition of each element in copper (II) tetra-ammonia chloride.
(2 pts each) Balance the following chemical reactions (5 pts) Nitric acid (HNO3), a component of acid rain, is made in the air when NO2 gas comes into contact with water vapor according to the following equation: For every 35.00 grams of NO2 released into the air, how many grams of nitric acid (HNO3) are […]
What additional information about your past experience may aid the selection committee in evaluating your preparation and aptitude for graduate study at UCLA?
Statement of purpose of UCLA Respond to the following. Your statement can be up to 500 words in length. You do not need to answer every question; focus on the elements that you feel are most relevant to your candidacy. What is your purpose in applying for graduate study in your specified degree program? Describe […]