Discussion
Graph 1 displays the reaction time (in minutes) of how long it took for the Alka-Seltzer tablet to completely dissolve per trial. Graph 2 displays the averages of the reaction time which showed the higher the water temperature is, the faster the reaction time would be. At 65⁰C the average time for the Alka-Seltzer to completely dissolve was 1 minute 4 seconds followed by 1 minute 20 seconds at 35⁰C and ending with the highest average at 2 minutes 1 second (1.61).
The hypothesis stated that hot water temperature would make the Alka-Seltzer tablet dissolve the fastest. The hypothesis is supported from the gathering of data.
The results for this practical were expected as the reaction times increased over the lower water temperatures. Temperature is related to this reaction because of the bicarbonate ions …show more content…
It was possible that some may have has less or more water. This may affected the results for how long it took for the Alka-Seltzer to dissolve. To prevent this from happening, using a measuring cylinder and making sure the water level is read by the bottom of the meniscus will help with the water accuracy.
A random error that occurred throughout this practical was a different reaction time of when to drop in the Alka-Seltzer and start/stop the stopwatch. This error may have also impacted on the timing of how long it took the Alka-Seltzer. A way to prevent this error could be to set up each trial one at a time.
It is important with every experiment to have at least a minimum of three trials. This needs to be conducted for the results to be precise. Having a minimum of three trials makes it easier to find possible errors and to get better precision which is affected by random errors. Conducting multiple trials will result in finding any possible outliers in the results. For the Alka-Seltzer experiment, each temperature of water consisted of 3 trials
Graph 1 displays the reaction time (in minutes) of how long it took for the Alka-Seltzer tablet to completely dissolve per trial. Graph 2 displays the averages of the reaction time which showed the higher the water temperature is, the faster the reaction time would be. At 65⁰C the average time for the Alka-Seltzer to completely dissolve was 1 minute 4 seconds followed by 1 minute 20 seconds at 35⁰C and ending with the highest average at 2 minutes 1 second (1.61).
The hypothesis stated that hot water temperature would make the Alka-Seltzer tablet dissolve the fastest. The hypothesis is supported from the gathering of data.
The results for this practical were expected as the reaction times increased over the lower water temperatures. Temperature is related to this reaction because of the bicarbonate ions …show more content…
It was possible that some may have has less or more water. This may affected the results for how long it took for the Alka-Seltzer to dissolve. To prevent this from happening, using a measuring cylinder and making sure the water level is read by the bottom of the meniscus will help with the water accuracy.
A random error that occurred throughout this practical was a different reaction time of when to drop in the Alka-Seltzer and start/stop the stopwatch. This error may have also impacted on the timing of how long it took the Alka-Seltzer. A way to prevent this error could be to set up each trial one at a time.
It is important with every experiment to have at least a minimum of three trials. This needs to be conducted for the results to be precise. Having a minimum of three trials makes it easier to find possible errors and to get better precision which is affected by random errors. Conducting multiple trials will result in finding any possible outliers in the results. For the Alka-Seltzer experiment, each temperature of water consisted of 3 trials