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What else can I help you with?
What has a pH below 5.6?
Substances with pH below 5.6 are considered acidic. This can include items such as vinegar, lemon juice, and some soft drinks. They have a higher concentration of hydrogen ions compared to neutral pH (7).
How is hydrogen ion concentration changed as pH changes?
It's not that the concentration of H+ ions goes up because pH goes up. Instead, the pH goes down because H+ concentration increases. I know that's a really subtle difference, but it is crucial. If you're good at math this may help: pH= -log [H+] where [H+] simply means concentration of hydrogen ions. So, you can see from this formula that as the concentration of hydrogen ions increase, the pH will decrease because it is a negative log. You can also see that the pH is a function of hydrogen concentration. I hope that clears some ideas up for you. Good luck!
The movement of ions across cell membranes is an example?
Some ions are prevented from moving down their concentration gradients by ATP-driven pumps. Some ions move from high to low concentration gradients through membrane protein channels, and some ion gates in the membrane can open in response to electrical potential changes.
Do strong acids have higher concentrations than weak acids?
No. The concentration of and acid and the strength of an acid are two unrelated values. The strength of an acid is the degree to which it will break apart into ions when dissolved in water. It is an inherent property of any given acid. The concentration of an acid is how much of it is present in proportion to its solvent (usually water) and is independent of any properties of the acid itself. You can take a solution of some acid and add it to water to lower the concentration or boil off some water to raise the concentration, but the properties of the acid itself remain the same.
Produces OH - ions when added to water?
A substance that produces OH- ions when added to water is a base. Bases are substances that increase the concentration of hydroxide ions in a solution. Some common examples of bases include sodium hydroxide (NaOH) and potassium hydroxide (KOH).
What ions is in high concentration inside the neuron?
Potassium ions (K+) are found in high concentration inside the neuron compared to outside. This concentration gradient is maintained by the sodium-potassium pump.
Why are some substances acids while others are bases?
Substances are classified as acids or bases based on their ability to donate or accept protons. Acids donate protons, while bases accept protons. The concentration of hydrogen ions (H+) determines acidity, with more H+ ions indicating stronger acidity, and the concentration of hydroxide ions (OH-) determines basicity.
Why 2 electrochemicals cells stop working after some time?
The concentration of reactive ions are reduced
What has a pH below 5.6?
Substances with pH below 5.6 are considered acidic. This can include items such as vinegar, lemon juice, and some soft drinks. They have a higher concentration of hydrogen ions compared to neutral pH (7).
How is hydrogen ion concentration changed as pH changes?
It's not that the concentration of H+ ions goes up because pH goes up. Instead, the pH goes down because H+ concentration increases. I know that's a really subtle difference, but it is crucial. If you're good at math this may help: pH= -log [H+] where [H+] simply means concentration of hydrogen ions. So, you can see from this formula that as the concentration of hydrogen ions increase, the pH will decrease because it is a negative log. You can also see that the pH is a function of hydrogen concentration. I hope that clears some ideas up for you. Good luck!
Do all bases have hydroxide ions?
No, not all bases contain hydroxide ions. Bases are substances that can accept protons (H+ ions) and increase the concentration of hydroxide ions (OH-) in solution. Some bases, like ammonia (NH3) or sodium bicarbonate (NaHCO3), do not contain hydroxide ions but still have basic properties.
The movement of ions across cell membranes is an example?
Some ions are prevented from moving down their concentration gradients by ATP-driven pumps. Some ions move from high to low concentration gradients through membrane protein channels, and some ion gates in the membrane can open in response to electrical potential changes.
Do strong acids have higher concentrations than weak acids?
No. The concentration of and acid and the strength of an acid are two unrelated values. The strength of an acid is the degree to which it will break apart into ions when dissolved in water. It is an inherent property of any given acid. The concentration of an acid is how much of it is present in proportion to its solvent (usually water) and is independent of any properties of the acid itself. You can take a solution of some acid and add it to water to lower the concentration or boil off some water to raise the concentration, but the properties of the acid itself remain the same.
Produces OH - ions when added to water?
A substance that produces OH- ions when added to water is a base. Bases are substances that increase the concentration of hydroxide ions in a solution. Some common examples of bases include sodium hydroxide (NaOH) and potassium hydroxide (KOH).
Can distilled water be electrolysed?
Yes, distilled water can be electrolysed. Water always contains a few hydrated hydrogen ions and hydroxide ions from self ionization. There can also be some chloride ions because hydrogen chloride can distil over with water. However, the concentration of ions is extremely low so electrolysis is very slow.
Do acidic solutions give some or many hydrogen ions?
The more acidic a solution is, the more hydrogen ions it gives off.
What is one way a saltwater fish controls the concentration of salt in its body?
Some fish balance water loss by drinking seawater and actively transporting chloride ions out through their skin and gills then the sodium ions follow passively out as well.
