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Solution Essay Examples

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Osmosis and Diffusion

The basic principles of Osmosis and Diffusion were tested and examined in this lab. We examined the percent increase of mass and molarity of different concentrations of sucrose in the dialysis bag emerged in distilled water and the potato cores emerged in concentrations of sucrose. The data reinforces the principles of Osmosis and Diffusion, and…

Beer’s Law Lab Report

Abstract: The Beer’s law lab was conducted to determine the optimal wavelength of Co(NO3)2·6H2O with the use of spectrometry. The results determined that the optimal wavelength to study the absorbance of this salt was 500nm. It also demonstrated how transmittance of light and absorbance of light are inversely proportional because absorbance is calculated by multiplying…

What is the role of 0.25M sucrose as the medium for the fractionation process?

1) What is the role of 0.25M sucrose as the medium for the fractionation process? Cold sucrose does not chemically react with cell organelles  Due to the density and size of sucrose molecules, it is able to suspend pellets for configuration while providing a solution where the centrifugation can be better balanced Sucrose offers a…



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Food Dye Lab

Abstract: The purpose of this lab was to determine the food dyes present in a selected beverage, their concentration, and then replicate the solution within a 20% margin of error. The beverage we chose was Gatorade Frost Riptide Rush. A spectrometer was used to determine which food dyes were present in the sampled beverage, red…

Determining the Osmolarity of a Potato

Abstract Students in Biology find it difficult to understand the concept of tonicity and osmolarity in a real time situation. In this investigation, several concentrations of sucrose were used to determine the osmolarity of a potato. It was found that the concentration of sucrose was close to 3.6 in the potato used showing that it…

Determination of Copper by Complexation

ABSTRACT To determine the concentration of copper in an unknown solution by using copper complexation, solvent extraction and spectrophotometry. Standards are used to create a calibration curve and the unknown concentration of copper is then calculated by using the linear equation from the calibration curve. The concentration of copper in the unknown solution 201 was…

Conventional wisdom indicates

Many books on the market discuss the differing nature of the sexes. Conventional wisdom indicates that a man asked how to get someplace that he will give directions laced with compass points, tenths of miles, and street names. The same conventional wisdom indicates that a woman, asked for the same information, will give directions that…

Molar Mass of a Solid

Abstract: The purpose of this experiment is to determine the molar mass of an unknown solid. The freezing point of a solvent (Cyclohexane) was determined, and compare to the freezing point of Cyclohexane with the addition of two different concentration of unknown solid. The pure substance of Cyclohexane has defined physical properties. However, when a…

Potato Osmolarity Lab

Purpose: The purpose of the lab is to discover the osmolarity of the potato tissue. Background Information: Osmolarity is a concept similar to concentration, except it is the total number of solute particles per liter. In this lab we can show osmolarity by using sucrose solutions and potato ores. This experiment displays hypertonic, hypotonic and…

Problem Solution: Global Communications

Global communication is an operating in the telecommunication industry which provides communication solutions to customers worldwide but currently it is under tremendous pressure and uncertainty as the company is facing challenges pertaining to the rights of its stakeholders and increasing competition in the industry that has left GC behind other companies. This company is getting…

An overview and Presentations of Possible Solution

Ethical operation is an important issue discussed in the case. Ethical issues are brought out if it considered that social corporate responsibility is a major point of discussion. The organisation feels that it is time it paid back to the community that has for a long time played an important part in ensuring it stays…

Obesity Solution

The article, “Clinton: U. S. Risks ‘Collapse’ Without Obesity Solution,” was published in CNN International Online. The United States former president, Bill Clinton, was in the forefront talking about obesity as a national crisis regarding the health and well-being of over thousands of Americans all over the country. Clinton claimed there is an apparent reason…

Determination of Ksp of Copper(II) Iodate by E.M.F. Measurement

Introduction: Copper(II) iodate(V) ionizes weakly in water: Cu(IO3)2 + aq Cu2+(aq) + 2IO3-(aq) For a saturated solution of copper(II) iodate(V), concentration of IO3- ions doubles that of the Cu2+ (aq) ions, and Ksp of Cu(IO3)2(s) can be calculated by determining the concentration of Cu2+(aq) ion of a saturated Cu(IO3)2(aq). The e.m.f. of a galvanic cell…

Determination of the Percentage of Oxalate in Iron(II) Oxalate by Redox Titration

Introduction Acidified potassium permanganate is a strong oxidizing agent. It oxidizes substances and reduces itself. MnO4- + 8H+ + 5e- ————-> Mn2+ + 4H2O (Purple) (Colourless) Both iron (II) and oxalate ions can be oxidized. When they come in contact with an oxidizing agent, the following reactions occur: 1. C2O42- ——————> 2CO2 + 2e- 2….

Analysis of two Commercial Brands of Bleaching Solution

Objective To determine the concentrations of the active ingredients in 2 commercial bleaches. Introduction Sodium hypochlorite is usually found in bleaching solutions. It is the active ingredient of bleaching solutions. It bleaches by oxidation. When it is added to dye, the following reaction occurs: ClO- + dye —————-> Cl- + (dye + O) If the…

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