Question

In: Chemistry

Over the course of the semester, we studied several techniques (spectrophotometry, acid-base titrations, redox experiments) to...

Over the course of the semester, we studied several techniques (spectrophotometry, acid-base titrations, redox experiments) to answer questions related to quantification and identification of compounds, kinetics of chemical reactions,and equilibrium constants. With some background research, write a researchable question that could be answered with one or more of the techniques used during the semester.Write a research plan to answer the question. The plan does not have to be a detailed step by step procedure, but an overview of the experiment including controls and how you would “work up” the data to answer your question.

The question I would like is...how to determine the quanity in compounds? But to me it seems like question is not really a research question.

.

Expert Solution

Chemical Method for Quantitative analysis are

A) For metals

1) Gravimetric analysis

2) Comlexometric titrations

3) Redox Titrations.

B) Physical method:

1) Chromatography.

2) Atomic Absorption Spectroscopy.

3) Flame Emssion Spectroscopy.

Of these methods Gravimetry has following sub methods:

1) Methods of Gravimetry:

a) Precipitation gravimetry : A gravimetric method in which the signal is the mass of a precipitate.
b) Electrogravimetry : A gravimetric method in which the signal is the mass of an electrodeposit on
the cathode or anode in an electrochemical cell.
c) Volatilization gravimetry : A gravimetric method in which the loss of a volatile species gives rise to the
signal.
d) Particulate gravimetry : A gravimetric method in which the mass of a particulate analyte is determined
following its separation from its matrix.
=======================XXXXXXXXXXXXXXXXXX==========================

a) Precipitation Gravimetry

b) Electrogravimetry

Gravimetry:

queen_honey_blossom answered 1 year ago

1 Phenolphthalein is an indicator often used for weak acid - strong base titrations. The acid...

1 Phenolphthalein is an indicator often used for weak acid - strong base titrations. The acid form of phenolphthalein is colorless and the base form is pink. Do you think the pKa of phenolphthalein could be determined from isosbestic point to find the pKa for bromothymol blue? Explain why or why not

Write the expectations for pH at Equivalence in Acid–Base Titrations. 1. Titrating a strong acid with...

Write the expectations for pH at Equivalence in Acid–Base Titrations. 1. Titrating a strong acid with a strong base (OR vice versa) Titrating a strong acid with a strong base (OR vice versa) pH at equivalence point: 2. Titrating a weak monoprotic acid with a strong base pH at 1⁄2 equivalence point: pH at equivalence point: 3. Titrating a weak diprotic acid with a strong base pH at 1st 1⁄2 equivalence point: pH at 1st equivalence point: pH at 2nd...

Describe a homeostatic imbalance of one of the systems we studied this semester. It can be...

Describe a homeostatic imbalance of one of the systems we studied this semester. It can be any disease or imbalance of your choice. Describe how it affects your selected body system.

Over the semester, there have been two main threads in the course. The first was the...

Over the semester, there have been two main threads in the course. The first was the various adaptations from parenchyma cells to advanced sieve tubes and vessels. The second was from the most simple land plants liverworts to the angiosperms. Across both threads, I’ve discussed changes in lifecycles, the adaptation of thallose gametophytes to sporophytes with true leaves. The reduction of the gametophyte portions of the life cycles from being dominant to being reduced to pollen as also been discussed....

Balance the following redox equations either in acid or base: a. HClO -> Cl^(-) + ClO3^(-)...

Balance the following redox equations either in acid or base: a. HClO -> Cl^(-) + ClO3^(-) [acid] b. ClO4^(-) + Br2 -> Cl^(-) + BrO2^(-) [base] c. H2S + BrO3^(-) -> SO3^(2-) + Br2 [base] d. NH3 + SO4^(2-) -> N2 + SO^(2) [acid] e. IO3^(-) + H2S -> I2 + SO4^(2-) [acid]

COBIT is one of the IT standards we studied this semester. a) What does COBIT stand...

COBIT is one of the IT standards we studied this semester. a) What does COBIT stand for?[1 mark] b) List and explain the seven enablers for COBIT. What is the purpose of each one? [1 x 7 =7 ] Lecture 2 c) In this semester, we studied managing IT in organizations. List and describe three types of IT resources. [1x3 =3]

Balance each reaction, determine if they are ion-exchange, redox, or acid-base, and determine the direction of...

Balance each reaction, determine if they are ion-exchange, redox, or acid-base, and determine the direction of the reaction and if they are reverisble or irreversible and explain why. NH4 NO(s) – N(g) + H2(g) N2 (g) + O2 (g) – NO (g) N2 (g) + H2 (g) – NH3 (g) H2O (g) - O2 (g) + H2 (g) CaCO3 (s) – CaO (s) + CO2 (g) Cl2 (g) + H2O (l) – HCl (aq) + HClO (aq) NH4 (s) –...

During the semester we studied IT Project Management. List the five attributes of a project. [1...

During the semester we studied IT Project Management. List the five attributes of a project. [1 x 5 = 5] List and describe the four generic phases of a project life cycle of development. [ 2.5 x 4 = 10]

Throughout the course, you have studied and used tools and techniques that have underlying statistical theory...

Throughout the course, you have studied and used tools and techniques that have underlying statistical theory and assumptions. Regression is no different. Haphazard application of regression analysis, as with any type of statistical technique, can lead to results that are inaccurate and that, even worse, can get you or your employer into trouble (whether that trouble involves product faults, legal issues, or simply wasted time and money). Thus, you must always be cognizant of the conditions of the problem as...

We studied the major groups of microorganisms this semester. Choose one organism from at least five...

We studied the major groups of microorganisms this semester. Choose one organism from at least five different groups. Each of the organisms you choose must belong to a different group. Number your answers 1 through 5, and indicate A through D for each. Provide the following information for EACH organism: A. State to which of the major groups the microorganism belongs. B. Write the scientific name of the organism using correct scientific nomenclature. C. List a specific disease the organism...