Mercury Reports Samples For Students

The problem is to test, based on the level of mercury, whether the two batches, X and Y, originated from the same catch. The statistical method used to perform this kind of test is the Mann-Whitney U-test.
Mann-Whitney U-test is used to compare whether two independent samples have been drawn from a population with the same characteristics. And it is used only when there are two samples to compare. In case there are two independent samples, Kruskal-Wallis test is used to investigate whether the samples were drawn from the population with similar characteristics.

The following steps would be followed when doing a Mann-Whitney u-test:

- Levels of mercury content in ...

Introduction

At ambient temperature and pressure, mercury (the elemental mercury) is a metal in form of heavy silvery-white liquid. It exists in three oxidation states: mercuric Hg+2, metallic Hg, and mercuros Hg2 +2. Organic and Inorganic compounds are formed by mercuric and mercuros states. The mercuros state is unstable under environmental conditions. Mercury exists in water, sediment, soil and biota only in inorganic mercuric salts and organomercurics.
In the Cold Vapour analysis, mercury from the digest sample is reduced with either SnCl2 or NaBH4 and then measured with a conventional cold vapour flameless atomic absorption spectrometry. The whole system is ...

Module 5 – Continuity Plan for Wisconsin Xcel Energy

Introduction
Xcel Energy is a United States investor-owned electricity and natural gas company with annual revenue of $10.3 billion. It performs regulated operations to provide energy to customers in eight Midwestern and Western states - Colorado, Michigan, Minnesota, New Mexico, North Dakota, South Dakota, Texas, and Wisconsin. Based in Minneapolis, Xcel provides a comprehensive portfolio of energy-related products and services to approximately 3.4 million electricity and 1.9 million natural gas customers through four utility subsidiaries—Public Service Company of Colorado (PSCo), Southwestern Public Service Company (SPS), Northern States Power Company-Minnesota (NSPM), and Northern States Power Company-Wisconsin (NSPW).
Xcel operates ...

Abstract

Electronic waste is a growing global problem and as the demand and supply of electronic products grow, so does the–e- waste. Consumerism is on a steady rise, and people want new mobiles and computers every few months. That means more and more landfills and incinerators to take care of discarded and obsoleted electronics and potentially seeping of toxic substances like lead and mercury into groundwater. This can lead to serious health hazards and create toxic footprints. The essay looks at new developing technologies for the recycling of computers and creates a report on the basis of the quadruple ...

Introduction

The object of the paper is to analyze the above relationship over a range of pressures extending above and below atmospheric pressure.
Data were obtained for the pressure and temperature of a saturated steam-water mixture in equilibrium over a wide range of pressures and temperatures. The “raw” experimental data are given at the end of this document and the apparatus used are described below.

The object of this exercise is to:

a) Use the raw data to produce a table of absolute pressure .v. absolute (thermodynamic) saturation temperature over the whole range of the data provided.
b) Compare this data to equivalent data taken from steam tables.
c) Use ...

Abstract

The experiment aimed at explaining the interaction of the molecules at different pressure, temperature and volumes. At low temperatures, the volume of the gas was low while at high temperatures, the volume of gas increased. The experiment successfully determined the value of absolute temperature using the Charles’s Law as 202.75OC which was lower than the theoretical value. The experiment also successfully verified the Boyle’s Law. The interaction of temperature and the volume of the fluid can be concluded to be directly proportional with an increase in temperature leading to increase in volume. On the other hand, the ...

Introduction

The experiment was conducted to establish the association between head loss as a result of fluid friction and the flow rate of water. Turbulent and laminar flow within the pipe were also investigated. Fluid Friction Equipment containing three bore pipes was used to take the data of head loss at dissimilar velocities. Different readings on volume, time, flow rate, pipe diameter, and velocity and head loss of both mercury and water were collected. The data collected were used to investigate the association between head loss due to friction and the flow rate of water through bore pipes. An estimate ...

Introduction

Hypertension, commonly referred to as high blood pressure, is a medical condition which comprises of incessantly elevated blood pressure in the arteries. Hypertension may cause damage to the organs and several illnesses including renal failure, heart failure, heart attack or stroke. According to (Luehr, Hayes, Johnson & Burke (2012), close to 30% of the adult American (U.S.) population have hypertension. Majority of these people are those over 65 years. This means that nearly 66.9 million U.S. citizens have hypertension. This number is predicted to rise as the number of those above 65 years continues to rise. Poor adherence to medication and ...

Biodiversity and sustainability, two of the major factors to determine if an ecosystem is habitable and sufficient for any life form, may it be fauna, fawn or human kind. However, there are only a few sites left around the globe which can be considered sustainable and contains biodiversity as climate change continues to affect the planet. Some areas have become barren, while a few remained arable but in the risk of being converted into commercial lands for homes or businesses. In the United States, the problem of pollution not only affected its once diverse ecosystem, which is considered the home of ...

Introduction

Lab is a simple word used to shorten the word laboratory. It is a place in which experiments are carried out. These experiments include medical, physical and biological experiments (Martin 2004). Research is also done in laboratories. Laboratory equipment is an apparatus used in conducting experiments. Lab equipments vary from one laboratory to the other. Lab equipment integrity means using the equipments in the laboratory in the best way in order to produce accurate data that is used in research and experiments (Melissa 2000).

Objectives

The main objective of making a report on lab equipment integrity is to develop a complete program that provides ...