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If I double the concentration of Sodium Chloride ions in a solution the current that can flow through the circuit will also double.
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Chemistry Coursework Prediction If I double the concentration of Sodium Chloride ions in a solution the current that can flow through the circuit will also double. Controlled Variables * Temperature: Room temperature-15ºc * Voltage: 6V * Volume of water: 200cm³ * Equipment: see diagram Diagram How to make the concentration * 0.5M = 5.85g in 200cm³ * 1M = 17g in 200cm³ * 1.5M = 22.85g in 200cm³ * 2M = 34g in 200cm³ * 2.5M = 39.85g in 200cm³ Method * Set up all the equipment * Switch on the circuit * Write down the first current seen * Switch the circuit off. Results Using different equipment Using the same equipment Concentration (m) Current (A) Current (A) 0.5 0.44 1.92 1 1.93 1.73 1.5 1.98 2.07 2 2.22 2.41 2.5 1.16 2.55 Analysis I found out that the results follow a trend. The trend is that the points on the graph are in a straight line, which curves off towards the top right hand corner of the graph. The last point on my graph was lower than I expected, which is why the line curves off towards the end of...
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