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

Our aim is to design a practical investigating how that effect alters the speed of the reaction in a chemical reaction between magnesium and hydrochloric acid.

Extracts from this document...


Chemistry Lab Report Investigating one of the factors that could affect the rate of a reaction Name: Mena Nadum Class: IB07 Introduction: In chemical changes, the rate of the reaction is affected by many factors that it varies from reaction to another. One of those factors is the surface area. Our aim is to design a practical investigating how that effect alters the speed of the reaction in a chemical reaction between magnesium and hydrochloric acid. And we are going to precede that lab by changing the surface area of a particular mass of magnesium. Research Question: How does the rate of the reaction depend on the surface area? Independent Variable: the surface area of the magnesium Dependent Variable: the rate of the reaction Controlled Variables: The mass of magnesium The volume and the concentration of Hydrochloric acid The temperature Apparatus Magnesium amounts Mg with same mass 0.03 �0.01g Hydrochloric acid HCl 2.0M A stopwatch A ruler A Beacker100 �1 ml Figure1: Magnesium Ribbon Measuring the variables The surface ...read more.


The time for the reaction was took and recorded. The experiment continued using four different surface areas and the surface areas were varied basically by taking the same size of magnesium ribbon and cutting it into 4 pieces in the second trail, and into 8 pieces in the third trail, while in the last two trails pebbles and powder of magnesium were used. Each of the five trails was repeated four times for the accuracy. From the chemical reaction between the magnesium and the hydrochloric acid, Hydrogen bubbles were formed and the magnesium was dissolved in the acid forming MgCl according to the equation: Mg + 2HCl � H2 + MgCl2 (a): the reaction between a magnesium ribbon and HCl (b): reaction of Mg powder and HCl Figure2 (a) (b): the reaction Mg-HCl Data collection was gathered from this investigation: Table row data between the timing of the reaction in different surface areas of 0.03g of Magnesium Types Of Surface Areas Of Mg/ 0.03g Time 1 t/s �0.01s Time 2 t/s �0.01s Time 3 t/s �0.01s Time 4 t/s �0.01s Av. ...read more.


A lot of mistakes could be predicted for this kind of experiments. One of them is the time taking was not accurate although many trails were repeated, the uncertainty is still big; and the reason is when using the hands for the stopwatch to start and stop, the response for pressing the start or the stop button may not be fast enough when the reaction is begun or ended. Another thing is that sometimes you can not see if the bubbling of the hydrogen is done or still so you do not know whether the reaction is fully completed or still carrying on; hence the time taken will be wrong. All those errors could have led to inaccuracy of the measurements. Except that the experiment wasn't so hard to perform and to do some improvements I would recommend examining a larger mass of magnesium because the time for the reaction will be longer and more options of surface areas will be available, hence the relationship between the quantities will be more obvious. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our International Baccalaureate 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 International Baccalaureate Chemistry essays

  1. Investigate the rate of reaction of luminol in various factors. The objective was to ...

    Water bath It allows the solution rise to a certain temperature. Crushed ice It is used to cool down the solution to 0�C or lower. Test tube It is used to hold a solution. Thermometer It is used to measure the temperature of the water bath and ice bath.

  2. Rates of Reaction Lab Report - magnesium and hydrochloric acid

    A process of trial and error, involving a pipette, was used for this particular experiment to achieve this. The cylinder in this situation was filled to 17 mL. 4. Practice step 5. Remember that once the cylinder is inverted and submerged, the increment markings need to be visible so that

  1. The rate of reaction between sodium thiosulfate and hydrochloric acid

    This observation can also prove that the predicted equation (listed in Design -> Aim) is correct as the yellow sulfur precipitate is produced. * Another qualitative observation is the irritating odour familiar as the smell of a just-struck match demonstrated by CFC StarTec LLC (2007)

  2. Chemistry Laboratory Report --- Classification of Chemical Substances

    o Molecular substances won't conduct electricity as it has no free electrons. Even in cases where electrons may be delocalised within a particular molecule, there isn't sufficient contact between the molecules to allow the electrons to move through the whole solid or liquid.

  1. Energetics Design Lab

    %unc(T) = 7.78% M(acid) = (0.005/1.00) = 0.50% V(acid) = (2/50) = 4.00% Moles(acid) = 4.50% Delta H (neutralization) = 12.3% Total: 36.8% Qualitative Results: * The reaction immediately started as soon as the sodium carbonate was dropped into any of the acids; however, specifically for the sulfuric acid there was a much louder fizzing noise and the temperature increased much faster.

  2. The aim of this experiment is to examine the enthalpy of combustion of the ...

    = 1.59 g ( as decided ) Molar mass of methanol is needed for further calculations and it can be calculated in a following way : M (CH3OH) = Ar (C) + Ar (O) + 4*Ar (H) = 12.01 + 16.00 + 4*1.01 = = 32.05 g mol-1 From here

  1. IB Chemistry Lab Design - compare the effect of temperature on the concentrations of ...

    Wash the beaker with water and pour into standard flask, to remove any remaining solution. Repeat this process 3 times. 1. Wash the funnel and the glass rod, letting the water run into the standard flask. 1. Make up the solution to the 1000 ml mark.

  2. Measuring the fatty acid percentage of the reused sunflower oil after numerous times of ...

    5.109 ± 0.020 = 3.6% ± 0.1% ml/g oleic acid 22 ASLAN Özge Cemre D129077 Calculations for sample 2 (10 times frying): Trial 1: V = 61.0 ± 0.1 ml → Vε = 61.0 ± 0.2% ml m = 5.150 ± 0.001 g →mε = 5.150 ± 0.019% g A% = (61.0 ± 0.2% x 0.0028 x 100)

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