EXPERIMENT 1: WATER CRYSTALIZATION OBJECTIVES: To determine the percentage of water in aluminium sulphate hydrate To calculate the water of crystallization for aluminium sulphate hydrate To prove that a hydrate solution will lose some of it mass after heated INTRODUCTION A hydrated salt is a crystallize salt molecule that is weakly attached to a certain number of water molecules. Salt is created when an acid’s anion (negative ions) and a base’s cation (positive ions) are combined to produce
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property of water is that it is an excellent solvent. This is because of the chemical composition and physical attributes of water. Since water is polar‚ it allows water molecules to become attracted to different molecules. The attraction can be so powerful that it can disrupt the attractive forces of the different molecules. For example‚ water can be heavily attracted to salt that it can disrupt the forces that hold sodium and chloride‚ therefore dissolving it. The second property of water is its high
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Water Crisis and Water Management in Pakistan 1- Introduction Water plays a vital role in a country’s economy. Water has been critical to the making of human history. The earliest agricultural communities emerged where crops could be cultivated with dependable rainfall and perennial rivers. Simple irrigation canals permitted greater crop production and longer growing seasons in dry areas. Some of the problems faced by the world population are as below. • More than a billion people lack access
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WATER/BUFFER LECTURES .....SOME NOTES YOU SHOULD HAVE TAKEN IN CLASS \wxNotesInClassBe. 1301124 8 and Things you should have done‚ or tried... = all problems! Gas pressure/concentration: 1 Atm = 760 mm Hg = 10 m H20 = 15 psi (psi is the industrial unit). O2 and man: upper limit/ lower limit Minimum: Without adaptation‚ man can not survive on top of Mt Everest = 8‚000M = 0.3Atm = height of jet liners= 0.06 Atm O2 Man starts being affected at 0.5 ATM air = 18‚000’ Maximum
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sector (PEM‚ 2003). As stated in the EMB report‚ domestic wastewater discharges contribute highest to the BOD load as the lack of sewage treatment system allows more than 90 percent of inadequately treated domestic sewage to be discharged into surface waters‚ which contain bacteria and viruses that threaten human life. Geographically‚ data show that one-third (30 percent) of BOD generation comes from Metro Manila and Region IV alone‚ at 18 and 15 percent‚ respectively (PEM‚ 2003). Industrial wastewater
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Water Pollution Introduction There are more things affect earth bad and make environment polluted like wastes‚ plastics‚ smokes and much more make earth and environment polluted and difficulty. Pollution is one of thing like this Pollution make environment difficult there are different types of pollutions like Air Pollution ‚ Land Pollution ‚ Noise Pollution ‚ Water Pollution ‚ Light Pollution and Soil Pollution these all have separate effects to human body and earth with environment . Definition
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how the use of water in everyday life takes place in different industries. Also mentioned are the ways in which the different industries can reduce their consumption of water in different processes: 1Food Processors- The main use of water in the food processing industries include washing and sanitation‚ cooling and heating and a lot of other tertiary functions. In order to conserve water in this industry‚ the water must be reused in other processes‚ like rinsing water can be used in
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Complexometric Determination Of Water Hardness By Angelica Aquino CHM 152 LL January 5‚ 2013 METHODS: 1. Prepare an approximate 0.004 M disodium EDTA solution. To prepare this solution‚ weigh about 0.7-0.8 g of Na2EDTA and dissolve in 500 mL deionized water in your plastic bottle. Make to to shake the bottle to dissolve the salt. 2. Obtain a 250-mL Erlenmeyer flask and transfer a 10 mL of CaCO3 using a buret into the flask. 3. Measure 30 mL of deionized water and add it into the titration
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because they provide a diverse range of resources: they store carbon‚ aid in regulating the planetary climate‚ purify water and mitigate natural hazards such as floods. Forests also contain roughly 90 percent of the world’s terrestrial biodiversity.[3] --------------------------------------------------------------------------------------------------------------------- Importance of Forests Forests are very useful in the life of man. They help us in many ways. They provide us shade and keep the
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An Introduction to Water Analysis February 1 and February 8 2011 Aim and Objective: The aim of this experiment was to determine the pH level of an unknown HCl solution. While doing so‚ we would also be receiving a good and fundamental understanding of how to use modern lab equipment to determine the chemical and physical properties of water bodies. Method: Make sure safety gear is always on and equipment is always clean. Part 1- Direct Analysis by pH Test Kit We grab a 50ml beaker
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