Sentence examples for masses of substances from inspiring English sources

Lavoisier opened the door to quantitative chemistry by establishing that the transformations of matter, which until his day had been described largely by a miasma of uncoordinated reports, could be investigated quantitatively by measuring the masses of substances consumed and produced in reactions.

The formation of glass is best understood by examining Figure 1, in which the volume of a given mass of substance is plotted against its temperature.

METHOD STIFF DTMIN = 1e-3 DTMAX = 0.1 DTOUT = 0 TOLERANCE = 1e-3 STARTTIME = -28 STOPTIME = 84 ; All DE written in terms of molar mass of ; substance, ; not concentration, in order to maintain ; mass balance ; but note kon is second order with respect ; to concentration.

The Scottish scientist Joseph Black, in the 18th century, noticed that equal masses of different substances needed different amounts of heat to raise them through the same temperature interval, and, from this observation, he founded the concept of specific heat.

Therefore, in order to investigate the design of a relief port, research on a 38.6wt% methanol-acetic anhydride system was carried out by using a high-performance adiabatic calorimeter PHI-TEC II, and effects of different volumes of reactors and different masses of reacting substances therein on the area of the relief port were analyzed.

Fig. 1 Schematic presentation of mass transfer of substances in and out of alginate bead.

The ability of cultured plant cells to transform some organic compounds is useful for mass production of substances.

The mixed samples consisted of equal masses of active substance and each excipient.

Comparing the content of mineral substances in the rats from the control group with the rats exposed to the electromagnetic field generated by a mobile phone, it was possible to state that the influence of such electromagnetic field leads to a statistically significant decrease of calcium content and minor decrease in the mass of mineral substances in L4 vertebra.

The elements L i j of L then represent the total (direct and indirect) mass requirement of substance i to produce substance j.

The results obtained in this research have shown that the ratio of calcium to phosphorus in the mass of mineral substances was 2.15 in the rats from the control group, which indicated that the main mineral substance in these bones of the rats from the control group was hydroxyapatite, in which the calcium to phosphorus ratio is exactly 2.15.