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

How the Concentration of Hydrochloric acid Affects the Rate of Co2 produced by Marble chips

Extracts from this document...

Introduction

Planning: How the Concentration of Hydrochloric acid Affects the Rate of Co2 produced by Marble chips Introduction: From this experiment I hope to succeed in finding the answer to the to the question: How does the amount of concentration of hydrochloric acid affect the amount of carbon dioxide given off by the reaction of calcium carbonate (marble chips) and the acid. I know that the following reaction takes place when the acid and chips are united: Hydrochloric acid + calcium carbonate ? Calcium chloride + water + Carbon dioxide This is how I know Carbon dioxide is produced but how much with different concentrations of acid is the question. Diagram: Variables: Input variable: Concentration of hydrochloric acid Output variable: Amount of Carbon dioxide produced Constant variables: Temperature (room) Mass of marble chips Volume of acid/water (50cm3) ...read more.

Middle

The five different concentrations I will be using for this experiment will be: Cm3 of hydrochloric acid (2mol/l) Cm3 of water 50 0 40 10 30 20 20 20 10 40 Risk Assessments: Before starting the experiment one should put on safety goggles and a lab coat to prevent the hydrochloric acid from damaging our eyes or clothes. As the acid is highly corrosive it should be handled with great care to avoid external or internal damage. If there is any split I will wipe it up straight away. To avert mistakes I will always label the beaker with the acid in it. The calcium carbonate (CaCo3) or marble in powder form is also dangerous and when it reacts with hydrochloric acid may spurt out and damage my eyes, this is the reason I wear eye protection. ...read more.

Conclusion

Prediction: I predict that the rate of reaction will increase as the concentration increases. This means that the amount of carbon dioxide is produced at a greater rate. See below for the graphs of 'gas collected against concentration' and 'rate of reaction against concentration': Gas Rate of Collected Reaction Concentration Concentration I believe that the gas collected will be proportionate to the concentration because as the concentration weakens, the gas collected decreases too as there is less acid to corrode the marble chips (which produce the Co2.) The other graph rate of reaction against the concentration) represents the same because a smaller concentration will mean a slower rate of reaction and vise versa. This is why the two are proportionate. Basically the two are stating that the higher the concentration the faster the rate of reaction because there is more acid to react with the calcium chloride so the more Co2 is produced as the calcium chloride gives this off. Hugo Jones Chemistry coursework ...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 Patterns of Behaviour 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 Patterns of Behaviour essays

  1. How the temperature affects rate of reaction between marble chips and hydrochloric acid?

    The fact that my results were consistent enough through the trials shows to say that there were no anomalous results. As can be seen from my results table and graph all the trials are close, give or take a tenth of a second.

  2. Free essay

    Close Your Eyes

    this was all a dream and that I hadn't been to school yet. I never was woken. I was still standing in front of Danny and he was waiting for an answer. "Yer sure" I said. Walk as slowly as possibly without making it obvious.

  1. Investigate how concentration affects the rate of a reaction using marble chips (CaCO3 ) ...

    the acid into a beaker first to decrease the risk of spilling it on to our hands or dropping the jar it was contained in and it makes it easier to control the amount of acid we wanted to measure.

  2. Demonstrate how the changing concentration of the hydrochloric acid affects the amount of carbon ...

    The size of the marble particles- Previous experiments have shown us that if a solid is broken up into smaller particles this increases its surface area.This results in the particles around it in the solution to have more area to work on so there will be an increase in the rate of reaction because there will be more collisions.

  1. Investigation to see how the Concentration of Hydrochloric Acid affects the Rate of Reaction ...

    Marble chips rely on surface area to react. If the surface area is increased then there is a bigger area for the HCl to react with. The liquid HCl relies on concentration for its reactions to occur. A solution with a higher concentration will react more readily with a solid because there are more particles to make contact.

  2. ICT modelling spreadsheet - This coursework was designed to investigate the uses of electricity ...

    Then all these three prices are added on to give the final billing cost. The formulae for this is '= '. When designing these spreadsheets, a computer is used instead of writing the coursework out, because the work can be saved and referred back to easily, and can be transported around on just a small disc or CD (compact disc).

  1. Investigation into how concentration of hydrochloric acid affects the rate of reaction with marble ...

    Planning Prediction Using my scientific knowledge I predict that as the concentration of the acid increases the rate of the reaction will accelerate causing Carbon Dioxide to be given off at a faster rate. I know this because there are more hydrochloric acid particles in the higher concentrated acid to collide with the particles in the marble chips.

  2. Investigating how the concentration of acid affects the rate of reaction between hydrochloric acid ...

    HCL (0.5, 1.0, 1.5, 2.0, 2.5mol/dm3): These concentrations of HCL after being varied to see how the rate of reaction varies with concentration. Cotton wool: Used to seal the top of each conical flask to prevent any of the reactants from spitting out.

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