Density Measurement of Sucrose Solutions

Extract

[...] - The precision of the densimeter is to the integer, while the values in the tables have a decimal. This slightly affects the calculations of the errors. It can be observed that the density evolves in an affine manner as a function of the concentration (using the measured values or those from the table) (see graph below). It can be noted that the value of the y-intercept, obtained for a concentration of in sucrose, is approximately 0.998 kg/m3. This value corresponds well to the density of water at a temperature range of 19 to 20°C. [...]

[...] Their density was determined with a densitometer. The measured density values are very close to those expected in the provided density table. Each measured value has a relative error less than 0.5%. In addition, the average relative error is: The results obtained show that the manipulation was performed under good conditions since the average error is less than 0.5% compared to the density values given in the tables. The errors can be explained by different hypotheses: - The temperature of the liquids was not exactly 20°C during the measurements, so the values therefore differ slightly from those in the table. [...]