• Join over 1.2 million students every month
• Accelerate your learning by 29%
• Unlimited access from just £6.99 per month
Page
1. 1
1
2. 2
2

# concentration of acid rain

Extracts from this document...

Introduction

Determination of the concentration of acid rain The burning of fossil fuels has released tonnes of sulphur dioxide into the atmosphere, the consequence of which has been the formation of acid rain. Rain water is naturally acidic due to the presence of hydrocarbonate ions, but for this exercise it is to be assumed that all the acidity is caused by the presence of sulphuric acid. Aim: to calculate the concentration of sulphuric acid in acid rain. After consideration I have decided to use sodium hydroxide to calculate the concentration of the acid rain by means of an acid base reaction in a simple titration. Sodium carbonate was another alkali that I could have used but there are complications when using it in an acid base reaction. ...read more.

Middle

H2SO4 + 2NaOH ? Na2SO4 + 2H2O As you can see we need twice as much sodium hydroxide compared to the sulphuric acid, so a concentration of 0.02 moles will be suitable. To make a solution of 0.02 moles I will need: * A mass balance that goes to two decimal places. * A 25ml pipette * Sodium hydroxide crystals * Deionised water * A 250ml volumetric flask * A 500ml beaker * A weighing bath 1. First weigh and record the weighing bath. Then weigh out 2g of the sodium hydroxide crystals. Pour the crystals into the 500ml beaker and dissolve in 100ml of deionised water. ...read more.

Conclusion

Then you will have a sodium hydroxide solution of 0.02 molar concentration. Sodium hydroxide is a deliquescent molecule, this means that it will absorb water from the atmosphere, which will in turn decrease the concentration. If the concentration is lower this means that my concentration calculations will be wrong. So it is important that a fresh batch of sodium hydroxide is made so that the concentration will be exact. For my titration I have decided to use bromothyml blue because its transition pH range is approximately 6.0-7.6. This range is very close to a neutral solution, which is the pH we are trying to achieve. METHOD: 1. Gather together the following apparatus: * 200ml NaOH solution of 0.02M concentration * 80ml HCl solution of unknown concentration * Bromothyml blue * 20ml pipette * Burette * 4 conical flasks * Distilled water * funnel 2. ...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 Aqueous 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

# Related GCSE Aqueous Chemistry essays

1. ## The effect of Acid Rain on Seed Germination.

Then at 0% concentration all ten of the cress seeds germinated, at 50% concentration five seeds germinated and finally at 100% concentration none of the cress seeds germinated. This particular relationship is directly proportional because, for instance at 40% the acid rain mixture denatures a certain number of enzymes in each cress seed.

2. ## Acid Rain

Since there are many solutions to the acid rain problem, leaders have a choice of which options or combination of options are best. As individuals people should invest in energy-efficient appliances, avoid the use of air conditioners, turn off the heater in the evenings, if they have a pool cover

1. ## The aim of this experiment is to find out the concentration of a solution ...

12. Create the solution using as little distilled water as possible, using just enough needed to dissolve the solute. Stir the solution with the glass rod to ensure all the solute has dissolved. 13. Transfer the solution from the beaker to the flask using a funnel.

2. ## Acid rain in Europe

We use electricity in our everyday lives and most of the time it is being used for the sake of it for example leaving lights on for that light to be on electricity is being used and for the

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