1-what do you meant by concentrated
and dilute acid
2- differentiate acid and base.
3- can dry HCL (g) turn blue Litmus red.
4- fill in the blanks
1- acids on ionization give –-- ions.
2- colour of PH paper in cold drink is
----.
3- Royal water is mixture of ---- and ----.
4- Bee sting contains -------- acid.
5- the pH of gastric juice is mild ----_--.
q5-- why does an acid solution conduct
electricity.
6- what do all acid and bases have
common explain.
7- what is a efluorescence name one
compound which show effluorescence.
Answers
Answer:
2.can dry HCL (g) turn blue Litmus red=no
3.Royal water is mixture of nitric acid and hydrochloric acid
4.Bee sting contains formic acid
5.why does an acid solution conduct
electricity.
<Acids undergo dissociation in aqueous solution to form H+ ions. When electricity is passed through an aqueous solution of an acid, the H+ ions reach the cathode and each H+ ion picks up one electron from the cathode to form H2 gas. Because of this reaction, an aqueous solution of acid conducts electricity.>
Answer:
A concentrated acid is an acid which is in either pure form or has a high concentration. Laboratory type sulfuric acid (about 98% by weight) is a concentrated (and strong) acid. A dilute acid is that in which the concentration of the water mixed in the acid is higher than the concentration of the acid itself.
An acid increases the concentration of H+ ions. A base is a substance that releases hydroxide (OH-) ions in aqueous solution, donates electrons and accepts protons.
Dry hydrogen chloride gas does not turn blue litmus red when hydrochloric acid does. Give one reason. Acidity is due to the ability of giving H+ ion. Dry hydrogen chloride does not give hydrogen ions and so it does not act as an acid and does not turn blue litmus red.
Acids are classified as either strong or weak, based on their ionization in water. A strong acid is an acid which is completely ionized in an aqueous solution. Hydrogen chloride (HCl) ionizes completely into hydrogen ions and chloride ions in water.
When the pH of a cold drink is 5 then the following results is shown: The cold drink is highly acidic in nature. At first the water changes into red colour and then into blue colour.
Royal water, or better known for its Latin name Aqua regia, is a fuming, corrosive liquid solution first invented by an Arab alchemist back in the 8th century. It is a mixture of one part of nitric acid and three part of hydrochloric acid.
Bee venom is slightly acidic and contains formic acid - but the major finding is that it is not the acidity of bee venom that causes the pain and the swelling, but rather lots of other nasty ingredients.
The pH of gastric acid is 1.5 to 3.5
Acids undergo dissociation in aqueous solution to form H+ ions. When electricity is passed through an aqueous solution of an acid, the H+ ions reach the cathode and each H+ ion picks up one electron from the cathode to form H2 gas. Because of this reaction, an aqueous solution of acid conducts electricity.
A lot of common things that are used in day-to-day basis are acids and bases. ... Both acids and bases are electrolytes which means that they're good conductors of electricity. Acids and bases both produce ions in water solution. Acids release hydrogen ions (H+) whereas Bases release hydroxide ions (OH–).
Gypsum (CaSO4. 2H2O) is a hydrate solid that, in a sufficiently dry environment, will give up its water to the gas phase and form anhydrite (CaSO4).
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