With my test result‚ it clearly shows that the concentration of sulfuric acid is 0.05 mol/dm3 using the concentration equation‚ c= n/v. 25 cm3 of the volume with sodium hydroxide is equal to 0.025 dm3 by dividing a thousand with cm 3 and multiply it with 0.1 mol/ dm3 which is the concentration of sodium hydroxide. With the ratio between sulfuric acid and sodium hydroxide is 1 to 2 so‚ 0.0025 should be divided by 2 and 0.00125 moles of sulfuric acid is come out. Finally‚ using c = m/v‚ 0.00125 mole/0
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This paper argues on both theoretical and empirical grounds that‚ beyond a certain point‚ there is an unavoidable conflictbetween economic development (generally taken to mean ’materialeconomic growth’) and environmental protection. Think for a moment of natural forests‚ grasslands‚ marine estuaries‚ salt marshes‚ and coral reefs; and of arable soils‚ aquifers‚ mineraldeposits‚ petroleum‚ and coal. These are all forms of ’natural capital’ that represent highly-ordered self-producing ecosystemsor
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gas called sulfur dioxide or SO2 for short. This toxic component is found in products made of plastic and certain preservatives found on dried fruits and nuts. Sulfur Dioxide as a vapor is released into the air then falls to the ground in the rain. This is known as acid rain. Acid rain has two indirect effects on our ecosystems. The first‚ acid rain slowly destroys our forests and plant-life. When acid rain falls‚ it seeps into the soil around trees and plants. Over time‚ the sulfur dioxide dissolves
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CUSTOMISED FERTILIZERS Rural Marketing Submitted By Kiran S. Ahirrao Roll No. 1006 Customized Fertilizers 1. What is Customized Fertilizer? Ans: Customised Fertilizers are combination of micro nutrients like sulphur‚ zinc‚ boron added to the key items such as urea and diammonium phosphate (DAP) and potash‚ in a proportion that suits specific crops and soil patterns. A fertilizer formulated according to specifications that are furnished by/for a consumer prior to mixing‚ usually based
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Presence of Insecticides & Pesticides in Fruits & Vegetables SCHOOL : K .V N T P C CHEMISTRY PROJECT REPORT STUDY THE PRESENCE OF INSECTICIDES AND PESTICIDES IB FRUITS AND VEGETABLES Name : Class : Reg. No : Examiner Teacher-in charge. CERTIFICATE This is to certify that the project was done by …………………………… Reg. No ……………….. Is in partial fulfillment of Chemistry Practical Examinations
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HOW FAST ARE CHEMICAL REACTIONS? THEORY The study of reaction rates‚ how fast or how slow a reaction takes place‚ is known as chemical kinetics. The rate of chemical reactions varies greatly. Some reactions‚ such as the explosion of an atom bomb are uncontrollable. Reactions like the decay of radioactive carbon (14C) are so slow that it takes centuries to see any noticeable change. Between the two extremes are reactions that can be measured in the laboratory. There are several factors that
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Back Titrations Question 1 A 10.0 g piece of rusty steel wool is dissolved in 200.00 ml of 1.00 M sulfuric acid. The excess sulfuric acid is determined by titration with a 0.500 M sodium hydroxide solution. 300.00 mL of sodium hydroxide is required to neutralise the acid. What was the % purity of iron in steel wool? Question 2 A 3.145 g sample of a certain lead ore containing lead(II) carbonate‚ PbCO3‚ was heated gently with 25.00 mL of nitric acid of concentration
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Epsom salt have many uses‚ including use as bath salts‚ as a laxative and as a plant nutrient. Epsom salt contains hydrated magnesium sulphate which has the formula MgSO4.xH2O. Experiment to find the value of x in a pure sample of hydrated magnesium sulphate. The method i will use is heating a known mass of magnesium sulphate to remove the water of crystallisation. x is found by weighing before and after heating to find the mass of the water then using the moles calculations to find x. The source
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Professor: Robert Flinn April 11‚ 2014 Cause and Effect Essay: Acid Rain Acid rain is a rain or any other form of precipitation that unusually acidic‚ meaning that the level of pH is below 7. Acid rains can happen due to the emission of sulfur dioxide and nitrogen oxide‚ which it reach to water molecules in the atmosphere to form acids. Acid rain is resulting from natural phenomena‚ and human activities‚ which has a bad affected to the surface water and aquatic animals- the animal that
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Question 1 What are probable sources of acid precipitation in your community? What impact can this have on the environment in your region? Some of the probable sources of acid precipitation is Fog‚ and rain. During the summer it hardly rains which makes it hard for our crops to grow‚ also since we are in the valley it makes it hard for us to get the water that we need. During the fall it gets very foggy in the mornings and it makes it very difficult to see while your driving. Prevailing
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