When the volume of a solution is doubled by adding solvent while keeping the amount of solute the same, the concentration of the solution will ___. A. increase B. decrease C. remain the same 相关知识点: 试题来源: 解析 B。当通过加入溶剂使溶液体积加倍而溶质的量不变时,溶液的浓度会降低...
Since the thickness of the nanodisk is not more than 100 nm, the nanodisk is transparent to light in a visible region. Further, when a metal element is held on the crosslinked structure part, the nanodisk can be utilized as a nanodisk having magnetic properties and electroconductive ...
There is disclosed a process for producing purified xanthan gum, which comprises (i) adding a hydrophilic organic solvent to an aqueous solution containing crude xanthan gum with pH 0.5 to 2.5, and (ii) neutralizing the mixture with a base to precipitate the xanthan gum. The xanthan gum thus...
A solution is diluted by adding more solvent. The concentration of the solution will ___. A. 心子住参火式万任知车矿又强步方力较方心子住参火式万任知车矿又强步方力较方increase心子住参火式万任知车矿又强步方力较方心子住参火式万任知车矿又强步方力较方 B. 也处质史生学农生此正也处...
Byadding upto8per cent polycarbonate (e.g. chips), one obtains a solvent solution with a reduced evaporation rate giving [...] quadrantplastics.com quadrantplastics.com 添加8%的聚碳酸酯(如片状),可得到蒸发速率低的溶剂溶液,这就弥补了表面配 ...
If some of the solution is removed without adding or removing any solute or solvent, the concentration of the remaining solution will ___. A. increase B. decrease C. remain the same 相关知识点: 试题来源: 解析 C。如果只移除一部分溶液而不改变溶质和溶剂的量,剩余溶液的浓度将保持不变。
where the fibrous web is first dipped into a solution containing the first precursor composition and later dipped into a solution containing the second precursor composition; and the like. Suitable non-contact printing processes for applying the superabsorbent polymer precursor compositions are disclosed ...
A method for reacting an enzyme in a non-aqueous organic solvent is disclosed. The method comprises preparing a lyophilizate of a salt which activates the enzyme and an enzyme wherein the lyophilizate
d. adding the resultant solution to the second solvent to create a polymer/dye co-precipitate and a residual solution; e. separating the polymer/dye co-precipitate from the residual solution; f. drying the polymer/dye co-precipitate to remove solvent residue; g. melting the dried, polymer...
The method comprises combining a polyurethane-containing material with a solvent and forming a solution of the polyurethane-containing material and the solvent. Next, a non-solvent is added to the polyurethane solution to form a suspension of polyurethane in a solvent/non-solvent mixture. Finally...