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Acids and Bases

An acid is any substance whose aqueous solution is characterized by a sour taste, the ability to turn blue litmus red, and the ability to react with bases and certain metals to form salts. A Base is any substance whose aqueous solution is characterized by a bitter taste, a slippery feel, the ability to turn red litmus blue, and the ability to react with acids to form salts. Questions about the acidity and alkalinity of solutions and different types of acids and bases are found n our Acids and Bases category.

24,101 Questions

What dose alkali feel like?

Alkalis typically feel slippery or soapy to the touch due to their ability to react with oils and fats on the skin to form soap. This sensation is a result of the alkaline nature of alkalis, which can disrupt the skin's natural oils and proteins. However, direct contact with alkalis can be irritating or corrosive to the skin, so it is important to handle them with care and use appropriate protective equipment.

Why does the pH of Coca-Cola change when you place limestone in it?

When limestone (calcium carbonate) is placed in Coca-Cola, a chemical reaction occurs between the acid in the soda (phosphoric acid) and the calcium carbonate. This reaction produces carbon dioxide gas, water, and calcium phosphate. As a result, the pH of the Coca-Cola increases, becoming less acidic due to the neutralization reaction between the acid and the base. The formation of calcium phosphate also contributes to the change in pH.

Name 3 acids that are used in school labs?

Oh, dude, like, you've got your classic vinegar, which is acetic acid, then there's hydrochloric acid, which sounds intense but is pretty chill in small doses, and sulfuric acid, the powerhouse of the trio. Just, like, don't go drinking these for fun, okay?

What will happen if acid reacts with marble?

It will react and effervesce(fizz).

Marble is a form of limestone (Calcium Carbonate).

All carbonates react with acids to liberate carbon dioxide , water, and a salt.

Here is the reaction eq'n for hydrochloric acid and calcium carbonate]

2HCl(aq) + CaCO3(s) = CaCl2(aq) + H2O(l) + CO2(g).

Why are marble chips not soluble in water?

Marble chips are primarily composed of calcium carbonate, which is not soluble in water due to its ionic bond structure. The strong electrostatic forces between calcium and carbonate ions hold the compound together, preventing it from breaking apart and dissolving in water.

Why Rothera's test not used to detect beta hydroxy butryic acid?

Oh, dude, Rothera's test isn't used for beta hydroxybutyric acid because it's specific for detecting acetone, not beta hydroxybutyric acid. It's like trying to use a metal detector to find your missing keys in the couch cushions - wrong tool for the job, ya know? So, if you're looking for beta hydroxybutyric acid, you gotta use a different test, like the nitroprusside test.

What is the word reaction for lead and sulfuric acid?

Oh, dude, when lead reacts with sulfuric acid, it forms lead sulfate and hydrogen gas. So, like, the lead gets all cozy with the sulfuric acid, they have a little chemical dance party, and boom, you get lead sulfate as a souvenir. It's like chemistry's version of a match made in heaven, but with more bubbling and fizzing.

What particles are found in an acid?

In an acid, you can find hydrogen ions (H+) and anions from the acid's dissolved molecules. The presence of these particles contributes to the acidic properties of the substance by increasing the concentration of H+ ions in the solution.

How does God use the weak to guide the strong?

There is a video in my YouTube channel it says about Psalm 37:18-19 Just check it out.Maybe it will help someone in need. Channel handle @Johann12-y17 Copy and paste this in YouTube search and Click on the channel In his footsteps and watch the first short. Do this if you like to know Psalm 37:18-19

Is sodium nitrite an acid or base?

Oh, dude, sodium nitrite is neither an acid nor a base. It's actually a salt, like the kind you sprinkle on your fries. So, next time you're at a BBQ and someone asks if sodium nitrite is acidic or basic, just tell them it's chillin' in the salt category.

What is chemical equation when hydrochloric acid react with potassium hydroxide?

Ah, what a happy little question! When hydrochloric acid and potassium hydroxide come together in a chemical reaction, they form water and a salt called potassium chloride. It's like nature's way of balancing things out and creating harmony on a molecular level. Just imagine those molecules dancing together, creating a beautiful new substance!

What can an Acid with pH 1.4 burn?

An acid with a pH of 1.4 is extremely corrosive and can cause severe burns to skin, eyes, and mucous membranes upon contact. It can also damage clothing, metal, and other materials upon prolonged exposure. Handling such acids requires extreme caution and protective gear.

When there is an OH at the end of a chemical formula is it acid?

NO!!!!

'OH' indicates an hydroxide., which is NOT an acid.

For mineral hydroxides , are written as , MOH , M(OH)2 , M(OH)3

However for mineral acids, are writtewn as HA , H2A , H3A , The acids Always have the 'H' as the first letter/symbol.

However, for Organic Acids, they are writtenas e.g R-COOH

Although the 'OH' is a suffix it remains an acid. This is because for organic acids , the symbol arrangement is ALWAYS , 'R-COOH'. The atomic structure is R-C(=O)-O-H. Both oxygens are directly combined to the carbon, NOT to each other.

This is standard International (IUPAC) practice.

So MOH is an hydroxide, and R-COOH is an organic acid.

NB

'M' = metal

'A' = acid anion

R- = rest of organic molecule.

A solution that is neither an acid nor a base?

A NEUTRAL solution.

NB Bases in solution are known as ALKALIs.

What can litmus paper tell you about a solution?

Litmus paper can tell you whether a solution is acidic or basic. It turns red in acidic solutions and blue in basic solutions.

How could you safely determine if a base is stronger than an acid?

Use an electronic pH meter.

If an acid registers '3' on a pH meter and an alkali registers '13' on a pH meter, then the alkali is the stronger.

Because the acid has 'two' steps to because the strongest acid at pH = 1 , but the alkali has only 'one' step to become the strongest alkali at pH = 14.

1 - 14 are the limits of the pH scale.

What is alkali in?

An Alkali is a soluble Base.

A Base is the Oxide of a metal , Usually Group (I) or (II) metals.

Sodium hydroxide (NaOH) is an Alkali.

Any chemical that has the formula (M-OH) , (M-(OH)2) et.seq. is an hydroxide. However, not all hydroxides are soluble. , so they are not all alkalis.

The word 'Alkali' is Arabic in origin. 'al qally, meaning the 'calcined ashes'. from baking and dissolving calcined salts.

So dissolving sodium oxide (a base) in water forms sodium hydroxide (an alkali).

Na2O + H2O = 2NaOH

Alkalis are not readily found in the home, because of their corrosive nature.

However, sodium hydroxide crystals can be purchased and used for drain clearance.

Soap to wash with is a sodium salt, made from boiling sodium hydroxide(lye) and palm oil of olive oil.

Soap will NOT dissolve in Salt water, owing to the common ion effect (Na^(+)). So to make soap lather in salt water . the soap is actually 'potassium salt'. Potassium soap is made from potassium hydroxide and the above oils.

How do you prepare a solution of 1 M HCl?

To prepare a 1 M (molar) solution of hydrochloric acid (HCl), you would need to dilute concentrated HCl (typically 37% w/w) with water. Measure out the appropriate volume of concentrated HCl using a volumetric flask and then add water to reach the desired final volume, ensuring proper mixing. It is crucial to handle concentrated HCl with care, as it is a corrosive and hazardous substance.

Does carbonic acid conduct electricity like the hydrochloric acid?

Carbonic acid (H2CO3) is a weak acid formed when carbon dioxide dissolves in water. It does not conduct electricity as effectively as hydrochloric acid (HCl), which is a strong acid that dissociates completely into ions in water. Carbonic acid only partially dissociates into ions, resulting in lower conductivity compared to hydrochloric acid.

Do dry fruits contain acid?

Yes, dry fruits contain natural acids like citric acid (in dried citrus fruits), tartaric acid, and malic acid. These acids contribute to their taste and can aid digestion but are generally mild and not harmful.

Visit at crunchharvest.in

Is HCO3 both a bronsted acid and base?

Oh, dude, HCO3 is like that ultimate multitasker in the chemistry world. It can totally be a Bronsted acid or base depending on the situation. So yeah, it's like a chameleon of the chemical world, just doing its thing, not caring too much about labels.

What salt is formed in potassium carbonate and sulphuric acid?

Potassium Sulphate/

Here is the word equation..

Potassium carbonate plus, sulphuric acid equals potassium sulphate, water and carbon dioxide.

Here is the BALANCED reaction eq'n.

K2CO3(s) + H2SO4(aq) = K2SO4(aq) + H2O(l) + CO2(g)

NB Remember ALL carbonates when reacted with an acid, form the salt plus water plus carbon dioxide.

Are acid and hydrogen the same?

NO!!!!

Hydrogen is a gas at STP , with the formula H2. That is H-H

Acids are substance which liberate the hydrogen ion 'H^(+)'.

The hydrogen gas is composed of two atoms of hydrogen, each Hence the atom has one proton and one electron.

The hydrogen ion can be thought of as an atom hydrogen WITHOUT the electron. Hence the charge of '+' on the ion.

NB When any atom becomes a charged species, then it is no longer an atom , but an ION.

What is the difference between fexofenadine hcl and fexofenadine?

Fexofenadine HCl and fexofenadine are essentially the same medication, with fexofenadine HCl being the hydrochloride salt form of fexofenadine. The addition of the hydrochloride salt increases the solubility of the drug, making it easier to formulate into oral dosage forms such as tablets or syrups. In terms of pharmacological activity, both forms are equally effective in treating allergies by blocking the action of histamine at the H1 receptor.

Is pure water neutral?

Yes, pure water is considered neutral because it has a pH level of 7, which is right in the middle of the pH scale. The pH scale measures the acidity or basicity of a solution, with values below 7 being acidic, 7 being neutral, and above 7 being basic. Pure water contains an equal concentration of hydrogen ions (H+) and hydroxide ions (OH-), resulting in a neutral pH.