Acids,Bases & Salt

-

Important Notes

On the basis of the chemical properties, all the compounds can be classified into three groups. 

1 Acid

2 Bases

3 Salts

Indicators for testing acids and bases -

An indicator is a dye that changes color when it is put into an acid or a base. The Three common indicators to test for acids and bases are-Litmus, Methyl orange, and phenolphthalein.

Litmus - Litmus can be used in the form of litmus solution or in the form of litmus paper. It is of two types -Blue litmus & Red litmus.

1 An acid truss blue litmus to Red. (ABR)

2 A Base turns Red litmus to Blue. (BRB)

Litmus is a natural indicator. Methyl orange & Phenolphthalein are synthetic indicators.

Methyl orange - The natural color of methyl orange is orange.

1 Methyl orange indicator gives Red color in acid solution

2 Methyl orange indicator gives yellow color in basic solution

Strong acid- An acid that is completely ionized in water and thus produces a large amount of hydrogen ions is called a strong acid, nitric acid & hydrochloric acid are strong acids.

Weak acid- An acid that is particle ionized in water and produces is a small amount of hydrogen ions is called a weak acid.

carbonic acid - Sulphurous acid (H2so3) are be acid.

Bases-Bases are thus chemical Substances that have a bitter taste and change the color Red litmus to Blue.

Water Soluble bases Alkalis - A Base that is Salvi in water is called an Alkali. Ex-Naoh, KoH, (CaoH)², NH4OH or Mg(OH)² etc. Bases are of two types.

strong Bases - A Base that is completely in water and thus produces a large amount of Hydroxide (OH-) ions, is called a strong base. Ex- NaOH, KOH as string Bases.

Weak Base - A Base that is practically iodized in water and thus Produces an amount of hydroxide ions is called a weak base. EX - NaOH, Ca(OH)², and Mg(OH)² are weak bases.

pH Scale



Comments

Post a Comment

Popular posts from this blog

Ch A Triumph of surgery Q/A

-
Q what kind of a person do you think the narrator is a veterinary surgeon? Would you say he is Artful as well as full of common sense? Ans The narrator seems to be a practical perum with lots of common sense. He is helpful to others as well. The way he treats tricky without a single medicine tells VS about his common sense more over the way he shares eggs, wines & brandy sending miss Pumphrey with his staff, and tells VS about his practised mindset. Q Do you think. I was happy to go home. what do you think will happen now Ans The way the trick jumps in its owner's lap and away shows affection towards the owner and indicates that tricky is happy to go home. Either Mrs Humphrey will want her ways & more trick on agile & healthy dogs or she may go back to her old ways of spoiling trick habits. Q Do you think this is a real-life episode or more fiction? Or fiction or a mixture of both. Ans This can be anything. This can be a real-life story fiction or a mixture of both. Q T...
Read more

Structure of nephron

-
                 Structure of nephron 1) Glorerucless 2) Bow Man's capsule 3) Proximal Convoculated tubeless (PCT) 4) Loop of Henle a) Ascending b) Descending 5) Distil C.T 6) Collective tube The function of nephron/urine concentration 1) Ultrafiltration 2) Selective Reabsorption 3) Secretion 1) Ultrafiltration The glomerulus filters the deoxygenated blood into oxygenated blood and transports it back out of the kidney. 2) Selective Reabsorption The different parts of the nephron absorb different materials. P.C.T.- 80% water, glucose, salt Ascending loop of Henle- Urine Vasorecta- Glucose, amino acids D.C.T- Facilitated absorption of 20%water with the help of hormones. 3) Secretion Excess waste is secreted out of getting the kidney. 4)Micturition  The process of throwing urine out of the body through the Urethra is called micturition. This action is Controlled by Lorain. Urine • The human urine is yellow due to Bilruvin secreted by the li...
Read more

Sentences Recording

-
Rearrange the following words and phrases to form meaningful sentences, first has been done for you. 1) extremely/a/Gries/it/is/that/matter/unkindly/ animals/are exploited. Ans it is an extremely a matter of grief that animals are exploited unlikely. 2)killed/theyare/beaten/chained/and/merchilily/trained Ans they are beaten chained trained and killed merchilily. 3) their/need/but/hears/and pays/ nobody/to cry. Ans but nobody hears and to their cries. 4)Sand/auxiliaries/animals /necessary/are hour/and survival/ for you Ans animals are our friends, auxiliaries and necessary for our survival Q5 animals/matters/one visions /world should be/welfare Ans our vision should be a world animal welfare matter.
Read more