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  2. Salt bridge (protein and supramolecular) - Wikipedia

    en.wikipedia.org/wiki/Salt_bridge_(protein_and...

    To maintain the salt bridge, His31 will attempt to keep its proton as long as possible. When the salt bridge is disrupted, like in the mutant D70N, the pK a shifts back to a value of 6.9, much closer to that of His31 in the unfolded state. The difference in pK a can be quantified to reflect the salt bridge’s contribution to free energy.

  3. Salt bridge - Wikipedia

    en.wikipedia.org/wiki/Salt_bridge

    The labeled salt bridge shows the U-shaped glass tube used as a salt bridge. To set up a glass tube salt bridge, a U-shaped Vycor tube is fashioned to contain a suitable electrolyte solution. [ 3 ] Normally, glass frits, a porous material, cover the ends of the tube or the electrolyte is often gelified with agar-agar to help prevent the ...

  4. Liquid junction potential - Wikipedia

    en.wikipedia.org/wiki/Liquid_junction_potential

    The most common method of eliminating the liquid junction potential is to place a salt bridge consisting of a saturated solution of potassium chloride (KCl) and ammonium nitrate (NH 4 NO 3) with lithium acetate (CH 3 COOLi) between the two solutions constituting the junction. When such a bridge is used, the ions in the bridge are present in ...

  5. DNA separation by silica adsorption - Wikipedia

    en.wikipedia.org/wiki/DNA_separation_by_silica...

    A chaotrope denatures biomolecules by disrupting the shell of hydration around them. This allows positively charged ions to form a salt bridge between the negatively charged silica and the negatively charged DNA backbone in high salt concentration. The DNA can then be washed with high salt and ethanol, and ultimately eluted with low salt.

  6. Why salt melts ice — and how to use it on your sidewalk - AOL

    www.aol.com/news/chemists-told-us-why-salt...

    Similarly, to get an improved salt surface area, use smaller salt. “If you have two 1-pound bags of salt, but one bag has big crystals and the other has small crystals, the smaller crystals will ...

  7. Electrochemical cell - Wikipedia

    en.wikipedia.org/wiki/Electrochemical_cell

    An alternative to a salt bridge is to allow direct contact (and mixing) between the two half-cells, for example in simple electrolysis of water. As electrons flow from one half-cell to the other through an external circuit, a difference in charge is established. If no ionic contact were provided, this charge difference would quickly prevent the ...

  8. Cell notation - Wikipedia

    en.wikipedia.org/wiki/Cell_notation

    In electrochemistry, cell notation or cell representation is a shorthand method of expressing a reaction in an electrochemical cell.. In cell notation, the two half-cells are described by writing the formula of each individual chemical species involved in the redox reaction across the cell, with all other common ions and inert substances being ignored.

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