Which concentration of acid when reacted with marble pieces gives off the largest volume of gas in the fastest time?
Aim
My aim is to find out which concentration of gas when reacted with marble pieces gives off the largest volume gas in the fastest time.
Prediction
I think that the strongest concentration of acid will give off the largest volume of gas, as there will be more reactions quicker.
Apparatus
Hydrochloric acid
Distilled water
Small marble pieces
Gas syringe
Conical flask
Measuring cylinder
Cork
Stop-watch
Safety glasses
Method
. Firstly you need to collect your equipment.
2. You then need to set up your equipment carefully as shown in the diagram.
3. Then you measure 75ml of hydrochloric acid into a measuring cylinder.
4. You then put 10g of small marble pieces in the conical flask
5. Then add the hydrochloric acid, put the cork in and start the stopwatch.
6. Then record the volume of gas every 5 seconds until the reaction stops.
7. You then repeat the experiment five more times but for each time you take 5ml of acid away and replace it with distilled water this is so you keep the mass the same.
Aim
My aim is to find out which concentration of gas when reacted with marble pieces gives off the largest volume gas in the fastest time.
Prediction
I think that the strongest concentration of acid will give off the largest volume of gas, as there will be more reactions quicker.
Apparatus
Hydrochloric acid
Distilled water
Small marble pieces
Gas syringe
Conical flask
Measuring cylinder
Cork
Stop-watch
Safety glasses
Method
. Firstly you need to collect your equipment.
2. You then need to set up your equipment carefully as shown in the diagram.
3. Then you measure 75ml of hydrochloric acid into a measuring cylinder.
4. You then put 10g of small marble pieces in the conical flask
5. Then add the hydrochloric acid, put the cork in and start the stopwatch.
6. Then record the volume of gas every 5 seconds until the reaction stops.
7. You then repeat the experiment five more times but for each time you take 5ml of acid away and replace it with distilled water this is so you keep the mass the same.