Glycerine Experiment Lab Report

Conclusion: I predicted that liquid A was glycerine due to a calculated density of 1.38 g/mL. However I was wrong the actual density of liquid A was 1.38 g/mL and the substance was actually corn syrup. Therefore the percent of error for the density of liquid is 1%. For liquid B I had predicted that its substance would be Glycerine due to the calculated density of 1.19 g/mL. I was incorrect for the density of liquid B which was actually 1.26 g/mL, but because the calculated and actual densities were very close I was able to get the right substance of Glycerine. The percent of error for the density of liquid B is 6%. I predicted that the substance of liquid D would be corn oil because of the calculated density of 0.75 g/mL. Even though I was correct for the substance of liquid C I was incorrect for the density which was actually 0.93 g/mL. The percent of error for the density of liquid C is 19%. I predicted that the substance of liquid D is water because of the calculated density was 0.66 g/mL. I was correct for the substance of liquid D but the density was wrong the actual density was 1 g/mL. The percent of error for the density of liquid D is 34%. Density is very important in identifying substances cause it is a characteristic property. …show more content…
I had probable messed up by not drying the graduated cylinder before pouring the liquid into the cylinder. Because there was probably leftover water in the graduated cylinder, it had caused the volume to be higher than it’s actual volume. V=? Therefore the density of the liquid was lower than the actual density. A good example where this would have occurred is liquid D. The calculated density that I got for liquid D was 0.66 g/mL. However the actual density of liquid D is 1 g/mL. I believe that because I had liquid already in the graduated cylinder it caused the volume to be higher and the density to be