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Lab Report on Density of Water

5 mL.
             3. Carefully immerse the solid in the water in the cylinder. Record the new volume to the nearest 0.5 mL.
             4. Carefully return the solid to a container designed by your teacher and pour water into sink.
             III. DATA AND RESULTS.
             ?.
             MATERIAL MASS VOLUME DENSITY PERCENT ERROR.
             BEAKER 102.849 g x x x.
             BEAKER AND WATER 152.849 g x x x.
             WATER 50.00 g 52.5 mL .9523 g/mL 4.483 g/mL.
             .
             GRADUATED CYLINDER 52.127 g x x x.
             CYLINDER AND LIQUID 57.787 g x x x.
             LIQUID 5.66 g 8.9 mL .6359 g/mL 18.993 g/mL.
             .
             WATER x 51.5 mL x x.
             WATER AND SOLID x 57.5 mL x x.
             SOLID 49.334 g 6.00 mL 8.222 g/ mL 8.236 g/mL.
             FINDING THE PERCENT ERROR FOR WATER.
             .
             9523 - 997=-. 0447.
             -.0447/.997=-.0448.
             -.0449 X 100=-4.483.
             Cant be a negative so new answer is. 4.483.
             FINDING THE DENSITY FOR SOLID.
             .
             D= 49.334/ 6.00.
             D=8.222.
             IV. CONCLUSION.
             The density of water that has been determined by this lab was .9523 g/ mL. The true density of water is .997 g/ mL. The percent error for the water was 4.483 g/ mL. Some possible errors that could of occurred and changed the attributes is that there could of been too much water which could change the conclusions greatly. Small things like not concentrating and little things like that affects every outcome.
             The density of the unknown liquid that was determined in this lab was .6359 g/mL. The unknown liquid was proved to be methanol. The true density of the unknown liquid was .785 g/ mL. The reason methanol was chosen to be the unknown liquid was because it had the closest measurements of densities as the one in the lab did. The percent error for the unknown liquid is 18.993 g/mL. Possible sources of error that could have distorted the conclusion measures is that the unknown liquid we were pouring in could not have been pure but maybe watered down by something. Also little things like measuring wrong and added too much effect the experiment greatly.
             The density of the unknown solid that was determined in this lab is 8.222 g/mL. The unknown solid was proved to be copper.


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