Investigating pH Aim: To demonstrate dissolved carbon dioxide changing the ph level of substances. Materials: * 2 beakers * 2 straws * Stop watch * Distilled water * Lime water * Litmus Paper Method: 1. Pour 100ml of Distilled water into the first beaker‚ and label said beaker. 2. Pour 100ml of Lime water into the second‚ also Label beaker. 3. Test the two liquids with litmus paper and note the ph level‚ before any carbon dioxide has been introduced. 4. Place a straw in each
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Deforestation The “Slashing and burning” of rainforests has to stop. The deforestation of our rainforests is effecting our environment and us more than you may think. We get the oxygen we need from trees‚ forests protect us from Carbon Dioxide‚ and forests protect most of Earth’s plants and animals. We need trees to breathe and rainforests to protect us from harsh things that we emit from our bodies. Many rainforests help and protect us. “More than 20% of the world’s oxygen comes from the Amazon”
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activities at night. Although the process of photosynthesis is quite fast‚ it isn’t fast or high enough to keep up with the rate of energy required during activities for human. Adding to that‚ an important component in photosynthesis is carbon dioxide‚ without carbon dioxide‚ photosynthesis can’t occur. If we were to perform photosynthesis‚ from where are going to get
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making it unfit for survival of aquatic life and drinking purposes. The material used for idols like Plaster of Paris (POP) is mainly the compound of gypsum‚ sulphur‚ phosphorus and magnesium. Chemical paints comprise of mercury‚ cadmium‚ lead and carbon. Immersion of idols with such poisonous and toxic elements raises the level of acidity‚ solid matter‚ organic matter and heavy metals in water bodies. These materials don’t dissolve readily and lowers the oxygen level in water adversely affecting
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Practical 3 Title: Effect of dissolved Carbon Dioxide on the pH of Water Aim: To investigate the effect of dissolved carbon dioxide on the pH of water. Hypothesis: The dissolved carbon dioxide will cause the water to turn acid‚ lowering the pH when carbon dioxide dissolves in water in which it forms carbonic acid (H2CO3). Materials: Straws‚ distilled water‚ safety glasses‚ pH probe‚ computer‚ universal indicator‚ gloves‚ lab coats‚ measuring cylinder‚ data logger‚ printer
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the baking soda hit the vinegar and lemon juice‚ the balloon started to expand.Adding the lemon juice to the baking soda creates a chemical reaction. The baking soda is a base‚ while the lemon juice is an acid‚ when the two combine they create carbon dioxide (CO2). The gas rises up and escapes through the soft drink bottle‚ it doesn’t however escape the balloon‚ pushing it outwards and blowing it up. What happen when I tested the experiment was me and my mommy had test it out and I found that two
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position and told the gas company to immediately take care of the problem. Another problem that has developed due to fracking is pollution around the dig sites. Emissions associated with combustion include nitrogen oxides‚ sulfur oxide‚ carbon dioxide and carbon monoxide. Another emission problem is the emission produced from the natural gas. Gasses such as methane‚ ethane and liquid condensate and volatile organic compounds (VOC). VOC’s have been proven to cause birth defects‚ neurological problems
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molar mass of chosen compound Marta Dürrigl 1mmA Chemical reaction: b.) CaCO3 (s) + 2HCl (aq) ----------- CaCl2 (aq) + CO2 (g) + H2O(l) AIM: The aim of this investigation is to experimentally determine the molar mass of carbon dioxide (CO2) by measuring its volume and calculating its mass. CO2 which we will measure will arise as a product of a chemical reaction between Calcium Carbonate (CaCO3) and Hydrochloric acid (HCl) as it is shown in the chemical equation above. Once
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Photosynthesis Abstract: An experiment was carried out to determine how certain factors such as light intensity and availability of carbon dioxide‚ affected the rate of photosynthesis. The rate of photosynthesis was measure by the amount of oxygen produce (cm3/min). A valid conclusion was made and most of the results were in accordance with the prediction‚ although there were some anomalies present. The errors and limitations were evaluated and some improvements were suggested. Introduction: Photosynthesis
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large‚ land-based organisms that cannot exchange gas sufficiently with the air through diffusion alone. A central ventilation system allows gases to be exchanged with the blood and carried around the body to the cells that require it. Oxygen Carbon dioxide Concentration gradient 3. Deduce the number of membranes an oxygen molecule must pass through in order to enter an erythrocyte. 4. Label the features of the alveoli and describe how they are adapted for their function. a.
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