• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Design Lab- Acid Rain

Extracts from this document...

Introduction

Chemistry Laboratory Report To test the effect of Acid Rain on Building Material Design Nikita Bansal B.D.Somani International School Chemistry Standard Level Candidate Number- 002602015 Session: May 2010 Aim: To test the effect of acid rain on building materials. Research Question: How do different concentrations of Nitric Acid (HNO3) by 2M affect the rate of reaction to completely erode limestone (Building material) keeping mass of limestone taken, volume of acid and room temperature and pressure constant? Background Information: Acid deposition is the acidic particles that are deposited or fall to the Earth in either the wet or dry form. It includes wet depositions of both oxides of sulphur as well as oxides of nitrogen. Acid Rain is rain with a pH of 4.2 or lower which indicates its acidity. It is believed that the main contributors to the acidic properties of this rain are oxides of sulphur and oxides of nitrogen. ...read more.

Middle

The Nitric Acid in the acid rain reacts with this Calcium Carbonate which results in formation of a soluble solution which washes away with the rain leading to erosion. CaCO3(s) +2HNO3 (g) --> Ca (NO3)2(s) +CO2 (g) +H2O (g) Hypothesis: Nitric Acid is highly acidic and reacts with alkalis. Due to its high acidic properties, it is highly corrosive and leads to corrosion of various building materials. In the experiment, three different concentrations of Nitric Acid are taken. One is dilute Nitric Acid, one is moderately concentrated Nitric Acid and the third is doubly as concentrated as the second Nitric Acid. If the concentration of the acids is stronger, the rate of reaction will occur more quickly because it increases the amount of molecules the molecules of the other reactant can collide with. Therefore there is more collision, speeding up the reaction. ...read more.

Conclusion

Observe until entire piece of limestone has been eroded away. ix) Stop the individual timers every time an entire piece of limestone has been eroded away. x) Check the time from start to stop time and record the time taken for complete erosion of limestone in all three test tubes. Precautions The mass of the limestone must be exactly the same The concentrations of Nitric Acid must range from lowest to highest. Apparatus i) 3 Test tubes of equal sizes ii) 0.025 dm3 of dilute Nitric Acid (2M) iii) 0.025dm3 of moderately concentrated Nitric Acid (4M) iv) 0.025dm3 of concentrated Nitric Acid (6M) v) 3 pieces of limestone, all of the same mass of 5 grams vi) Electrical Balance (error of � 0.95g) vii) 3 digital timers Data Table Concentration ofAcid Taken Mass of Limestone Time taken to completely erode the Limestone Dilute HNO3 (2M) 5 grams Moderately Conc HNO3 (4M) 5 grams Conc HNO3 (6M) 5 grams ?? ?? ?? ?? Nikita Bansal Chemistry Standard Level Candidate Number- 002602015 Design Lab ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our GCSE Organic Chemistry section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related GCSE Organic Chemistry essays

  1. acid rain

    Results Rate Graph We did this by drawing a straight line across from 30 on the Y- axis (we did this as it crossed 5 out of the 6 curves) we then jotted down the time it took where the 2 lines crossed.

  2. What is Acid Rain? What are the effects of acid rain?

    These gases are produced by firing processes at very high temperatures (vehicle) and chemical industries. There are natural processes such as forest fires, volcanoes and bacterial action in soil that also emit nitrogen oxides. Transportation and industrial combustion also contribute to the emissions of nitrogen oxides.

  1. Investigating the effect of the temperature of hydrochloric acid on its rate of reaction ...

    the CaCO3, increasing the number of successful reactions/unit of time, increasing the rate of reaction. Use particles of CaCO3 with the same surface area in each experiment. Amount of water produced I don't believe that this will affect the experiment, as I believe that the amount produced will be relative to the progress of the reaction in each case.

  2. Acid Rain

    Why is North America greatly at risk? Acid rain is more common in the Eastern U.S. and Canada than in the Western U.S. because emissions rise high into the atmosphere and are carried by prevailing winds from the west, falling out with precipitation in the east.

  1. Find out how magnesium ribbon reacts with various chlorides.

    A more advanced model of electron structure is used in which each shell is made up of sub-shells. Sub-shells. There are different types of sub shell: s, p, d and f. each type of sub-shell can hold a different number of electrons.

  2. Electrolytic wastewater treatment apparatus

    the liquid-permeable barrier, means for introducing wastewater to the cell and for discharging COD-reduced wastewater therefrom, and means for impressing an electrical potential difference across the anode and cathode to effect electrolytic oxidation of wastewater when introduced to the electrolytic cell.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work