The effect of an amine catalyst on oxyalkyalation of alcohols of low relative molecular mass was studied. The reactivity and selectivity of the formation of the first homologues depend upon the alcohol, the alkylene oxide and the degree of oxyalkylation and decrease in the following order ...
Relative atomic masses, molecular masses and the ‘mole’ concept The ‘mole’ concept 3 The word‘mole’has been adopted torepresent the Avogadro number of atomsof an element, that is, therelative atomic massof an element. Thus, one mole of sodium weighs 23.0 g or one tenth of a mole ...
The set of constraints (9) introduces the impact of the unique for every process mass transfer model, implying that the flowrate of source j linked to process i through interval k (if yi,j,k = 1), cannot be less than that required by the process for the inlet concentration of the ...
The study of the microbial communities in the built environment is of critical importance as humans spend the majority of their time indoors. While the microorganisms in living spaces, especially those in the air, can impact health and well-being, little is known of their identity and the proce...
Assess the relative strengths of acids and bases according to their ionization constants Rationalize trends in acid–base strength in relation to molecular structure Carry out equilibrium calculations for weak acid–base systemsThe relative strength of an acid or base is the extent to which it ionize...
Mass (weight) relative response factors convert measured peak areas into weight % of a component. Response factors should be determined for Ethanol, Propyltriethoxysilane (PTES) and Chloropropyltriethoxysilane (Cl--PTES).选择语言:从 到 翻译结果1翻译结果2 翻译结果3翻译结果4翻译结果5 翻译结果1复制...
coli cells regulate surface area synthesis to maintain the ratio of SA and dry cell mass M26. Thus, we investigated whether the SA to dry mass ratio (SA/M) is similarly maintained during stationary-phase outgrowth. Using a microfluidic device, we monitored stationary-phase cells exposed to ...
Arbuscular mycorrhiza fungi (AMF) are beneficial soil fungi that can promote the growth of their host plants. Accurate quantification of AMF in plant roots is important because the level of colonization is often indicative of the activity of these fungi. Root colonization is traditionally measured wi...
Southall et al., 2006; King, 2017; Chen et al., 2020) and were stored in 15-ml vials in deionised water and a squirt of denatured 99% ethanol. Samples were left for 24 h in 1 g/L rose Bengal stain immediately after washing (as per Murray, 1991). This process stains cell ...
The boiling point of any substance is defined as the temperature at which the vapor pressure of the liquid becomes equal to the atmospheric pressure. The boiling point depends on factors like Vander Waal forces of attraction, surface area, molecular mass, etc....