Determination of Vitamin C (Ascorbic acid) concentration in some of Commercial Products‚ by Redox Titration Mouhannad AL.-Hachamii Sadiq J. Baqir Saadon A.Aowda Fatima A. Hussein‚ Dep.of chemistry‚ college of science‚ Babylon University Muhammed K.Alasedi Ministry of Health Hilla city‚ Babylon Abstract The goal of this search is to determine the concentration of vitamin C (Ascorbic acid ) in some of a Commercial Products‚ Vegetables and Fruit Juices by Redox Titration. A redox
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Phuong Pham Prof. Johnson Lab 3 Gravimetric determination of Calcium as CaC2O4.H2O Feb‚ 27‚ 2014 I. Objective: The purpose of this lab is to determine how well gravimetric method measures the calcium level in a solution of known calcium concentration. II. Method: a) Overview: In this lab we will prepare 25 mL known concentration Calcium solutions. Then we will use Gravimetric method to determine the concentration of Calcium in each solution to figure out how well this method is. As we know
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Question 2.1: While duty of care is so important in a work with children‚ there are times when this principle seems to conflict with another principle‚ that is respecting the right of the children and families. A balanced approach has to be taken in deciding which has the greater priority in certain circumstances. Parents have responsibility for their child we as practitioner must not usurp that role as we only play a temporary role in their lives‚ parents have the lifelong role and centre role
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Merit Goods and Services Merit goods are those goods and services that the government feels that people will underconsume‚ and which ought to be subsidised or perhaps provided free at the point of use so that consumption does not depend primarily on the ability to pay for the good or service. • • • Both the state and private sector provide merit goods & services. We have an independent education system and people can buy private health care insurance. Consumption of merit goods is believed to generate
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A duty of care is a legal obligation imposed on an individual requiring that they adhere to a standard of reasonable care while performing any acts that could foreseeable harm others. A definition from Wikipedia. A duty of care is required in every work place and a greater duty or care is needed especially with younger children being as they are more vulnerable. A duty of care ensures support and care for individuals are provided at the required level within the law and also within the policies and
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Determination of specific heat Capacity of a solid by electrical method Introduction Thermal conductivity heat is transferred as a consequence of temperature difference between 2 bodies‚ heat energy passes form a hotter to the colder body. Specific heat capacity is the amount of heat energy required in joules to raise 1kg of a substance by 1 degree Celsius‚ different substances absorb heat energy at different rates not all substances require the same amount of heat energy to increase the
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Acid Determination of Vitamin C Tablets and Salt Solutions Chem 1290-016 03-05-2010 ------------------------------------------------- Purpose: The purpose of this lab was to use acid-base titrations to find the mass percent of ascorbic acid in a Vitamin C tablet. A known concentration of sodium hydroxide was used and the value found was compared to the stated amount of ascorbic acid listed on the vitamin container. Also in this lab the acidity of different salt solutions were tested using
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5% sodium chloride solution. * Examine the cells through the microscope. Draw and label 3 plant cells. * After a few minutes draw out the sodium chloride solution with a piece of filter paper placed at the edge of the coverslip. Replace it with distilled water added at the other side of the coverslip. QUESTIONS 1 Describe the cells in distilled water. How are the cells in 5% sodium chloride different from this? Describe what happens when you take away the sodium chloride solution and
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a worker’s attitude to enhance job satisfaction. Of course‚ the above statements have puzzled motivational scholars‚ psychologists‚ and individuals such as myself for many years‚ but I will examine these concerns in this paper. What is Self-Determination Theory
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Mg2+ Determination using EDTA Linh Nguyen Chem 1212L – 165 Feb 08 ‚ 2014 Purpose and Procedure: The purpose of this experiment is using Compleximetric titration and EDTA to determine the concentration of Mg2+ in solution; and also calculating the percent by mass of MgO in the unknown sample. This procedure results no significant deviations. The procedure for the experiment is from the lab manual referenced below Laboratory Experiments for Chem 1211L & 1212L (6e)
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