0
Let's look first at the compound HCl. Based on what you learned in the Compounds and Bonds Section, recall that this is an ionic compound. Since hydrogen (H) has one valence electron and chlorine (Cl) has seven, both readily ionize and form an ionic compound. In this process, hydrogen forms the cation H+, which is just a proton. Chlorine becomes the anion Cl-. Look at what happens when HCl is dissolved in water:
HCl + H2O → Cl- + H3O+
This shows us that HCl reacts in water to form Cl- and H3O+. HCl is a type of acid called hydrochloric acid. When it dissolves in water, it breaks down into its constituent ions, H+ and Cl-. While the Cl- ion remains by itself in solution, the newly released H+ ion attaches itself to a water molecule and forms H3O+. Since a water molecule is made of 2 hydrogen atoms combined with one oxygen atom, when we add a hydrogen atom, it then becomes 3 hydrogen atoms and 1 oxygen atom, or goes from H2O to H3O+.
In other words, HCl donates hydrogen ions to water molecules, and since HCl donates hydrogen ions, it is therefore an acid. With this example in mind, we sometimes define an acid also as a substance that increases the concentration of H+ or H3O+ ions in a solution.
This content came to you by courtesy of an Advanced Academics student. See if Pivot is the right school for you by clicking the related link.
What else can I help you with?
What is an electrolyte when placed in an aqueous solution?
A salt, acid or base which can be dissociated in ions in an aqueous solution.
Which functional group acts as a base when placed in solution?
The functional group that acts as a base when placed in solution is the amine group.
What happens with phenothalein is placed in Magnesium hydroxide?
Phenolphthalein in a solution containing magnesium hydroxide would remain colorless as it does not change color at a basic pH, where magnesium hydroxide is present. Phenolphthalein changes color in acidic solutions, not basic ones.
How can you tell if an ionic compound does not dissociate?
If an ionic compound does not dissociate, it means it remains in an undissolved form when placed in a solvent. This can be determined by observing if the compound stays as a solid, does not conduct electricity in solution, and does not change in appearance or properties.
What would happen if you did an experiment in which the iodine solution was placed in the Baggie and the starch was in the beaker?
The iodine solution in the baggie would diffuse into the beaker containing the starch. The iodine molecules would interact with the starch molecules, resulting in the formation of a dark blue or black color, indicating the presence of a starch-iodine complex.
With a toxicity equivalent to 0.9 NaCl and is placed in a solution containing 0.2 is this hypertonic?
A toxicity equivalent in 0.2 solution is hyper-tonic.
Cremation of a red blood cell may occur when it is placed in?
salt or a water solution containing alot of salt
What would happen to an animal cell if it was placed into a beaker containing a hypertonic solution?
You need dayan 2 hours
What is the name for a solution that has an excess of H plus ions and therefore breaks into H plus and another compound when placed in an aqueous solution?
acid or acidic
What solution is a cell placed in when both the cell and the solution in which it is placed?
htpotonic
Effect hot solution containing dissolved benzoic acid immediately placed ice bath?
Cooling the hot solution containing dissolved benzoic acid in an ice bath will cause the benzoic acid to crystallize out of solution due to the decrease in temperature. This rapid cooling process helps to promote the formation of pure benzoic acid crystals and allows for easier separation from the solution.
What solution is placed in the cell when the concentration of dissolved substances will be greater in the cell than in the solution in which it is placed?
Suger
What A substance that produces hydronium ions when placed in water is called?
A substance that produces hydronium ions when placed in water is called an acid.
What will happen when raisins are placed in concentrated solution of sugar?
when raisins are placed in concentrated solution of sugarthen they will swell up
What is an electrolyte when placed in an aqueous solution?
A salt, acid or base which can be dissociated in ions in an aqueous solution.
What can happen to animal cells when placed in a hypotonic solution explain?
What can happen to animal cells when placed in a hypotonic solution explain
Which functional group acts as a base when placed in solution?
The functional group that acts as a base when placed in solution is the amine group.
