Even if there aren't actually that many hydrogen ions floating around.

即便实际上没有那么多游离氢离子。

And current leaving your saliva through the other lead creates oxygen gas, leaving hydrogen ions behind.

通过另一端离开唾液的电流生成氧气，留下氢离子。

So when we say that the pH is the negative log of the hydrogen ion concentration...

因为10的2次方。

Meanwhile, sour-tasting acidic foods are high in hydrogen ions and take a different route by activating proton channels.

同时，酸味的酸性食物富含氢离子，通过激活质子通道采取不同的路线。

Because hydrogen ions, or protons, are pivotal to the behavior of acids and bases, which is what pH describes.

不过它也可能仅仅是。

And stomach acid, with a pH of 1, gives one hydrogen ion for every ten other molecules.

pH 为1的胃酸，每十个分子就电离出一个氢离子。

Just as we can calculate the pH of a substance from it's hydrogen ion concentration, we can calculate the pOH.

就是一种在不同pH值环境中会显现不同颜色的化学物质。

The pH scale only really works down to 0, where there's one hydrogen ion for every molecule in the solution.

pH 值测量范围最低只能到0，此时溶液中每一个分子都能电离出一个氢离子。

One way the body can decrease blood pH is by moving hydrogen ions out of cells and into the blood.

机体降低血液pH的一种方法是将氢离子移出细胞进入血液。

One way the body can increase the blood pH is by moving hydrogen ions out of the blood and into cells.

机体提高pH值的一种方式是将氢离子从血中移入细胞内。

These hydrogen ions are what sour taste receptors in your taste buds pick up on; they're also found in acidic foods.

这些氢离子就是味蕾感受到酸味的原因， 它们也存在与酸性食物中。

That unmistakable sour flavor that prickles you tastebuds is a product of the hydrogen ions that acids release when they combine with saliva.

刺痛味蕾的那种明显的酸味是酸与唾液结合时释放的氢离子的产物。

So there's five main buffers in the blood and in the kidney filtrate that the body can use to buffer hydrogen ions.

所以血液和肾脏滤液中有五个主要的缓冲剂，身体可以用来缓冲氢离子。

Those electrons, now in the copper, pull a couple of protons, or hydrogen ions, out of the acid, and reduce them, adding electrons.

那些电极，现在到了铜那里，会从酸中吸引很多质子，或者是氢离子，然后会减少它们的数量，增加电子。

Since your blood is mostly water, when CO2 dissolves in it, it forms carbonic acid, which breaks down into bicarbonate and hydrogen ions.

由于你的血液主要是水，当二氧化碳溶解在其中时，它会形成碳酸，分解成碳酸氢盐和氢离子。

To accomplish this, cells use a special ion transporter that exchanges the hydrogen ion for a potassium ion across the cell membrane.

为此，细胞运用特殊的离子转运体，跨细胞膜以1个钾离子交换1个氢离子。

Every time the pH drops by 1, hydrogen ions are ten times more common and the acid is ten times more reactive.

pH 值每减小1，氢离子浓度就变为原来的十倍，同时酸的反应活性是原来10倍。

It does this by stimulating osteoclasts, the cells that break bone down, to release hydrogen ions which dissolves the hard, mineralized hydroxyapatite.

甲状旁腺激素通过刺激破骨细胞来释放氢离子；破骨细胞是一种分解骨骼的细胞，可溶解坚硬的矿化羟基磷灰石。

So one of the fun ones was the idea that a single can of Coke contains more hydrogen ions than the entire body put together.

其中一个有意思的想法是，一罐可乐里的氢离子比整个身体的氢离子总和还要多。

Strong bases meanwhile, like sodium hydroxide, consume large amounts of hydrogen ions leaving the concentration very low, so they 10d to have very high pHs.

那么pH，简单地表示为负的该浓度以10为底的对数，也就是7我的这个小伙伴，成为了pH标度的基础。