manufactured in industry though contact process 2. The process contain three stage STAGE1: Production Of Sulphur Dioxide From Sulphur i. Combustion of sulphur or sulphide ores in the air produce sulphur dioxide SO2. S(s)+O2(g)(SO2(g) sulphur ii. sulphur dioxide is dried and purified. STAGE2: Production Of Sulphur Trioxide From Sulphur Dioxide i. The purified sulphur dioxide SO2 and excess air are passed over vanadium(V) oxide V2O5 at controlled optimum condition optimum condition
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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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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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DELHI PUBLIC SCHOOL DAGAPUR ‚ SILIGURI (Affiliated to C.B.S.E.) Session :- 2012-13 Topic : Study of effect of Potassium bisulphite as a food preservative Submitted To: Submitted By: Mr. B.GHOSH H.O.D. Chemistry 12th Science Roll no. = Certificate This is to certify that s/o Mr. Amar Singh is a bonafide student of class XIIth Science during session 2012-2013. He has completed his project on Study of effect of Potassium bisulphite
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Cbse-spot.blogspot.com 1 Class IX Chapter 15 – Probability Maths Exercise 15.1 Question 1: In a cricket math‚ a batswoman hits a boundary 6 times out of 30 balls she plays. Find the probability that she did not hit a boundary. Answer: Number of times the batswoman hits a boundary = 6 Total number of balls played = 30 Number of times that the batswoman does not hit a boundary = 30 − 6 = 24 Question 2: 1500 families with 2 children were selected randomly‚ and the following data were
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The Environmental Impact of Carbon Dioxide (CO2) Carbon Dioxide (CO2)‚ a chemical made up of one carbon atom and two oxygen atoms‚ is a non-flammable‚ odorless and colorless gas that exists naturally in the atmosphere. CO2 is one of the greenhouse gases‚ amongst methane‚ nitrous oxide and other gases‚ which keeps the Earth’s temperature habitable (UCAR). Without it‚ the Earth will be inhospitably cold. However‚ ever since the mid-nineteenths century‚ humans have significantly increased the amount
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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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Limiting Reagents and Percentage Yield Worksheet 1. Consider the reaction I2O5(g) + 5 CO(g) -------> 5 CO2(g) + I2(g) a) 80.0 grams of iodine(V) oxide‚ I2O5‚ reacts with 28.0 grams of carbon monoxide‚ CO. Determine the mass of iodine I2‚ which could be produced? 80 g I2O5 1 mol I2O5 1 mol I2 1 333.8 g I2O5 1 mol I2O5 28 g CO 1 mol CO 1 mol I2 253.8 g I2 1 28 g CO 5 mol CO 1 mol I2 b) If‚ in the above situation‚ only 0.160 moles‚ of iodine‚ I2 was produced
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Durga Puja is one of the auspicious occasion celebrated with great enthusiasm across India. In modern times‚ festivals are getting commercialized and taking the shape of pomp and show. Different communities set huge gigantic and attractive bright idols in order to compete with other communities. This all leads to major problem of environment pollution. Idols made by non biodegradable material and toxic paints contaminate water making it unfit for survival of aquatic life and drinking purposes.
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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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