In each experiment 10 grams of copper was used, and a known weight of sulphur, in the form of copper sulphate, added.
This method, which is the one commonly used, is based on the determination of the amount of ferrous iron oxidised by a known weight of the ore.
The titration is performed in the usual way, running the standard solution of silver nitrate into a solution containing a known weight or volume of the material containing the cyanide.
The last-mentioned is essentially volumetric, because a known weightof a substance is taken, and the volume of the air displaced by the vapour at a given t and h is determined.
The amount of heat evolved in the combustion of a known weight (for instance, 1 gram) of a given substance is determined by the rise in temperature of water, to which the whole of the heat evolved in the combustion is transmitted.
The capacity of the globe is then measured, and in this manner the volume occupied by a known weight of vapour at a known temperature is determined.
Nevertheless, it may be well to take a quantity of the solution, corresponding to a known weight of the original substance, and precipitate the acid by adding nitrate of silver.
When an estimation of the solid matter contained in the milk is required, a known weight is evaporated to dryness over a water-bath, and the residue weighed.
The difference in treatment results in the formation of-- (A) Neutral Size, prepared by boiling a known weight of rosin with sufficient alkali to combine with it and form a neutral resinate of soda.
A definite quantity of moist partially beaten and sized pulp, containing a known weight of air-dry fibre, is mixed with a suitable volume of water at a temperature of 80 deg.
A known weight of sulphite of lime is added to a measured volume of water, and the sulphurous acid gas discharged into the mixture from a siphon of compressed sulphurous acid.
For determining the alkalimetric strength of commercial sodas, a known weight of the sample is dissolved in water, and a few drops of a solution of methyl orange are added, which colour the solution yellow or orange.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "known weight" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.
