NaCl is insoluble in hexane. Answer true or false: When water is the solvent, the solution is called an aqueous solution. Answer true or false: Addition of a soluble non-volatile compound to water results in a freezing temperature higher than 0 C. True or false? Al(OH)3 is more ...
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Hexane is a nonpolar solvent, which one of the following below will be soluble in hexane? a) Sucrose(table sugar) b) Ionic Sodium nitrate c) Ionic gasoline d) Non-polar water e) Polar covalentWhich of the following are not soluble in water? a. ionic compou...
How much hexane is needed to dilute a 10% acetone solution to 1% acetone? Which of the following substance evaporates fast? (a) Distilled water. (b) Ethanol. (c) Acetone. (d) Methylated spirit. Acetone is a water-soluble molecular compound. If 0.151 mol of C3H6O is dissolved ...
Insight into the catalytic mechanism of CASD1 is given by biochemical analysis of a soluble CASD1 variant encompassing the N-terminal catalytic domain. This reveals the formation of a covalent acetyl-enzyme intermediate, which involves S94 placed in a catalytic triad. Finally, we provide direct ...
tuberculosis was also characterized as a novel cell wall-anchored esterase that hydrolyzes soluble p-nitrophenyl acetate47. However, its role in mycobacterial virulence and pathogenesis is not yet known. In this study, using a surrogate bacterium, we provide evidences that expression of PE11 can ...
The zero-current membrane potential was measured as − 19 ± 1 mV, which implies that the cationic selectivity exhibited by the channel in monovalent cation (KCl) turns into anionic in the presence of divalent cation (CaCl2). This is consistent with the structure that shows that the narrow ...
The fractionation of BM-21 was done by a bioassay-guided protocol, in which BM-21 was dissolved in water and successively partitioned with n-hexane, chloroform, and water-saturated n-butanol. The bioactive n-butanol fraction was then fractionated by size-exclusion column chromatography (Sephadex ...
The final pH in the reaction mixture was pH 7.15 unless otherwise noted. Precise free Ca2+concentrations were achieved by using a CaCl2-EGTA buffer and calculated using the free distributed software MaxChelator using the Bers stability constants (27, 28). Reactions were initiated by the addition ...
We slowly added 10 μL of 1 M CaCl2 in 2 μL increments to give a final concentration of 10 mM CaCl2 while the solution was continuously stirred for 18 min at 4°C. Next, the solution containing the tissue was centrifuged for 10 min at 1500 g and at 4°C. The supernatant (cilia)...