F6/7 Chemistry Practical: Enthalpy of hydration of copper(II) sulphate Objective: To determine the enthalpy of hydration of copper(II) sulphate Group size: Individual Introduction This experiment enables an approximate determination of the enthalpy of hydration of copper(II) sulphate to be made. The enthalpy change when one mole of anhydrous copper(II) sulphate is dissolved in water is first determined. Secondly‚ the enthalpy of solution of copper(II) sulphate pentahydrate in water is determined
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Hydration Super Hydration Super hydration is an approach to fluid intake to enhance fat loss through drinking ice cold water‚ and is flavoured by some body builders and people on rapid fat loss diets. There is currently no sound scientific evidence to prove that drinking ice cold water has any major effect on fat loss through increased kilocalorie use. Symptoms of super hydration include: Controlled appetite Clear skin Increased alertness Regular bowl movements It has been suggested
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Calculations Mass percent of water in CuSO4·5H2O using experimental data: (mass of water lost / mass of hydrated salt) x 100 (0.658 / 2.009) x 100 = 32.75 % Mass percent of water in CuSO4·5H2O using theoretical data: (90 / 249) x 100 = 36.14 % Percent error using experimental and theoretical mass percentages: (experimental value – theoretical value / theoretical value) x 100 (32.75 – 36.14 / 36.14) x 100 = 9.38 % Average percent water in CuSO4·5H2O using experimental values: (trial 1 % water +
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dehydration and reducing the risk of heat injury during training and competition. How can I prevent dehydration? The best way to prevent dehydration is to maintain body fluid levels by drinking plenty of fluids before‚ during‚ and after a workout or race. Often athletes are not aware that they are losing body fluid or that their performance is being impacted by dehydration. If you are not sure how much fluid to drink‚ you can monitor your hydration using one of these methods.
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water of hydration‚ solutions and dialysis. For Water Residue section‚ place about 1 mL of tap water on a clean watch glass and gently heat it until water has evaporated. Record if there is any residue and repeat this procedure using deionized water. Next‚ for Water of Hydration section‚ obtain a few crystals of hydrated copper(II) sulfate‚ describe their appearance on the data sheet. Then place the crystals into an evaporating dish‚ place a watch glass over the top of the dish and heat to drive
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from the hydrate has been removed it becomes anhydrous. This means that the hydrate has become completely dry‚ and is without water. This is important because to find the number of moles of water present in one mole in the hydrate CuSO you must first heat the hydrate and make it anhydrous. Hypothesis: In this experiment the amount of moles of HO per mole of CuSO in the anhydrous salt will be between 1-7. This amount will be obtained by heating the hydrate and determining the number of moles from the
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researchers published an empirical article called the “Comparison of the Effects of Hydration with Water or Isotonic Solution on the Recovery of Cardiac Autonomic Modulation”. The purpose of this study was to determine the importance of hydrating after strenuous activity. The ideal time that someone hydrates by drinking water‚ Gatorade‚ or any other sport drink is unclear. The researchers do know‚ however‚ that hydration helps with tolerance to strenuous activity because it helps regulate the body’s
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OBSIDIAN HYDRATION There are two ways of Obsidian Hydration. One is to determine if the artifact is older or younger as the other is a calendar date of AD/BC being used. The decision of which one to use is relative or absolute dating depends on the environment’s condition. The dating of Obsidian Hydration artifacts‚ which is based on the fact that a freshly made surface of obsidian will absorb water from it’s surroundings to form a measurable hydration layer. For example‚ cracking of the lava
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Benefits of Hydration The body is made up of around 75% water. Keeping the body adequately hydrated is a must to ensure good health especially in athletes. Sometimes proper hydration is difficult for people if they do not prefer the taste of water. This can lead to serious problems with their health. Determining your hydration can be simply done in two ways. One way to determine your hydration is to examine your urine. If you are properly hydrated it will appear pale yellow or sometimes clear
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hospitals and health-care facilities around the world are unable to use safe‚ clean water; and the Royal College of Nursing recognized this that they ensure patients in acute care receive clean‚ fresh water to encourage hydration.
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