Jawapan

2016-07-10T11:14:07+08:00
Volumetric flasks are used for precise dilutions and preparation of standard solutions it is calibrated to contain a precise volume at a particular temperature.Graduated cylinders are useful for measuring liquid volumes to within about 1%. They are for general purpose use, but not for quantitative analysis.If greater accuracy is needed,then we use a pipet or volumetric flask.