anode‚ electrolyte‚ cathode and conductor is called a galvanic cell. If the metals are then connected outside of the solution by an electrical conductor like a wire‚ a current of electrons will flow in the wire from the anode to the cathode. Inside the solution‚ positively charged ions from the oxidizing metal will migrate to the other metal‚ where they will again receive electrons and plate that metal. Lemon Cell While there are many electrolytes which will cause this reaction‚ citric acid is frequently
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The fast food industry all over the world has grown dramatically during the last few years‚ and apparently people in the U.S. spend more money on fast food than in daily life groceries. It seems so wrong to change homemade food for things like pre-elaborated patties‚ frozen fries and soda but there is so much more than the obvious high calories and low nutrients contents in these foods‚ there had been several scandals of all kinds regarding the hygiene and the quality of the products that many fast
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Determination of Vitamin C by an Iodometric Titration Purpose: The goal of this lab is to determine the concentration of vitamin C in juices and Real Lemon. A redox titration‚ involving an iodometric method‚ will be used to do the analysis. The samples will be classified by their Vitamin C content. Introduction: Although most mammals can synthesize vitamin C‚ or ascorbic acid (C6H8O6)‚ from sugars‚ man must ingest considerable quantities of this substance. The National Academy of Sciences recommends
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REGION | MINERALS | PLACES/PROVINCES LOCATED | % | TOTAL PERCENTAGE OF MINERALS PER REGION | NCR | Gold | - | 0 | 0 | | Copper | - | | | | Iron | - | | | | Nickel | - | | | CAR | Gold | Abra‚ Apayao‚ Benguet‚ Ifugao‚ Kalinga‚ Mountain Province‚ Baguio City | 0.8 | 25% | | Copper | Abra‚ Apayao‚ Benguet‚ Ifugao‚ Kalinga‚ Mountain Province‚ Baguio City | 20 | | | Iron | Benguet‚ Abra‚ Apayao‚ Ifugao | 0.5 | | | Nickel | Ifugao | 3.7 | | 1 | Gold | Ilocos Norte | 0.3
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tamin C‚ ascorbic acid‚ is one of the most important vitamins found in citrus juices‚ including orange juice. Often projects find that orange juices made from frozen concentrated orange juice (FCOJ) have the highest vitamin C levels as compared to freshly squeezed or not-from-concentrate (NFC) juices. This is probably due to the fact that vitamin C degrades over time in fresh and NFC‚ but doesn’t degrade as much in FCOJ due to it being frozen until reconstitution. If one is comparing a NFC product
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IB Biology Lab – Vitamin C content of food Aim: To compare the vitamin C content of different fruits using the decolourisation of DCPIP from blue to clear as the indicator. • You first need to estimate the volume of a known concentration of vitamin C solution required to decolourise 2 cm3 of DCPIP solution. • Then you need to determine the volume of fruit juice that decolourises 2 cm3 of DCPIP solution. This gives an estimate of the concentration of vitamin C in fruit juice. • This
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Did you know? 1. The map of Apayao is shaped like a man’s head. (forestry.denr.gov.ph – pic) 2. Sagada is known for its famous “hanging coffins”. Coffins are smaller than the usual because people are buried in a fetal position‚ which represents a return to nature. Not anyone can be buried in the traditional way; you have to be married first and have grandchildren. 3. The inhabitants in the Cordilleras are called Igorots which means “people of the mountains“. They are the
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Investigating the vitamin C content of fruits and fruit juice Aim: In this investigation‚ I aim to measure and compare whether there is a higher content of vitamin C in a fruit or a juice by measuring the volume of the sample required to decolourise a solution of dichlorophenolindophenol (DCPIP). Introduction: For this experiment‚ I aim to investigate and compare the content of vitamin C in the fruit against the fruit juice. The theory of this method is a titration with dichlorophenolindophenol
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VITAMINS‚ THEIR TYPES AND USES Vitamins are vital nutrients‚ indispensable to perform various tasks within the human body in order to promote optimal health and prevent various diseases. How do Vitamins work? Although required in minimal quantities these vitamins cannot be synthesised by the human body. Hence‚ they rely on easily available animal and plant sources for replenishment. These vitamins in conjunction with other nutrients help break down proteins‚ thereby stabilising metabolism‚ enabling
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Soluble Vitamins Anna Gamblin‚ UOP Both fat soluble and water soluble vitamins are nutrients that a person needs in their diet to keep up to optimal health. Vitamins and minerals are an essential necessity that our bodies need to function properly every day. Different vitamins do different things for us‚ but all are very important. You can get these different vitamins either through a balanced‚ nutritious diet‚ dietary supplements or a combination of the two. The two kinds of vitamins that are
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