Sulphuric acid

acidity in the water, the likely acids the sodium hydroxide neutralised were sulphuric acid (H2SO4) and nitric acid (HNO3). The equations for the following reactions are: H2SO4 (aq) + 2NaOH (aq) → 2H2O (aq) + Na2SO4 (aq) HNO3 (aq) + NaOH (aq) → H2O (aq) + NaNO3 (aq) Using the titre volume, the pH of the samples can be figures out. Refer to Appendix for calculations. The concentration of acid in the Dhaka sample when assuming that the acid being neutralised is sulphuric acid is 0.00275 mol/L, and the pH

Coal seam gas (CSG) is mostly composed of methane and is typically attached to coal underground. This gas is released when pressure on the coal seam is reduced by removing water from the seams (Queensland Government, 2014 ). In order to obtain the gas, wells are drilled into the coal seams, bringing water from the coal seams to the surface. This process reduces pressure and allows the gas to be released (Queensland Government, 2014 ). CSG is an important energy resource in Queensland and production

Phosphate buffer (50 mM: pH 7.0): a) 6.81 g. KH2PO4 was dissolved in distilled water and made to 1000ml. b) 8.90 g. Na2HPO4. 2H2O was dissolved in distilled water and made up to 1000ml. 2. Hydrogen peroxide (30 mM): 0.34 ml 30% hydrogen peroxide was diluted with phosphate buffer (solution a) to 100 ml. Procedure: The Venous blood was centrifuged. The plasma and leucocytes layer was separated. The erythrocyte sediments were washed 3 times with isotonic NaCL. A stock haemolysate

worldwide today for commercial shipping, because of the cheap price. (wiseGEEK, 2015) The burning of bunker fuels release sulphur dioxide (SO2) and nitrogen oxides(NOx) , which will combine to react with water(H2O), oxygen(O2) to make sulphuric acid and nitric acid. Both acids are then fused with other impurities to

How does acid rain affect the growth of plants? Aim: to determine how simulated acid rain affects the growth of radishes. Hypothesis: As the solution that is used to water the plants becomes more acidic, the height of the plants will decrease. Therefore, it is expected that radishes watered with distilled water which has a pH of 7 will exhibit the best growth than those watered with acidic solutions. Variables Independent variable: the pH of the solution Dependent variable: the height of radishes

1. Definition of Acid and Bases: 1.1 Arrhenius definition of acid and base: Arrhenius Acid: The substance or a compound which gives H+ ions in aqueous solution Arrhenius base: Base is a substance or compound that produces OH- ions in aqueous solutions. Chemists have known for some time that the H+ ion doesn’t exist in aqueous solutions as an independent species. The modernized Arrhenius definition of acid is that they are substances that produce H3O+ ions in aqueous

Distinction task: Explain which steps in the procedure could reduce the final yield: Explain which steps could reduce or improve purity of the final product: Steps 1, 2,6,7,8,9,10 and 12 are all to do with measuring. This is an important factor when thinking about trying to get as much yield as possible because if the accuracy is wrong we would lose yield and therefore would reduce the final product. For example, during step one, the alcohol has to be poured into the pear shape flask. There is a

understand the different chemicals (Acids, alkalis and neutral) work and see a change in color. Introduction: The red cabbage mark shows how simple household product such as red cabbage can make a suitable mark and be able find out if a chemical is either an Neutral, alkali or acid. Chemicals that are acid reacts with an alkali neutralizing it making water and a salt. Acids commonly are sour tasting. Acids change with metals, releasing

The importance of maintain the correct acid base balance in the body is crucial for a healthy lifestyle. Human bodies are very sensitive to pH levels and must be maintained to prevent any health issues. The term pH means potentials oh hydrogen. To function properly our blood pH is regulated at 7.4. The degree of acidity or alkalinity is referred to as the acid base balance. The acidity levels increase when the acidic compounds in the blood increase of the alkaline compounds in the blood fall. Alkalinity

Acid Rain: its Effect Acid rain refers to precipitation that is more acidic (having lower pH levels) than average. In more detail, acid rain is a type of precipitation that has mixtures of wet and dry materials coming from the atmosphere, which includes more nitric and sulphuric acids (Conserve Energy Future: Acid Rain). Acid rain can also be written as “Acid Deposition” because the acid rain could come down as other precipitation, for instance, snow. This became a worldwide problem due to the