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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.
24,105 Questions
NO!!!!
Grapefruit is an acidic compound.
It contains two acids. viz., Citric Acid, and Tartaric Acid.
What acid does grapefruit contains?
Tartaric acid is the main acid responsible for the characteristic tart/sour taste of grapes.
By the very fact it is referred to as 'Acidic' , it is an 'ACID'.
How do acidic substances taste?
Acidic substances typically taste sour or tart. The taste is often described as sharp, tangy, or biting, and can evoke a puckering sensation in the mouth. Examples of acidic substances include citrus fruits like lemons and vinegar.
This is ethanoic acid and is usually written as C2H4O2 , and structurally as CH3-COOH
NB When writing organic formula write all the 'C' first , then all the 'H' , then all the remaining elements in alphabetical order.
So HC2H3O2 does not mean a thing.
What is the difference between acetic acid and ethanoic acid?
Nothing!!!!
Acetic Acid is the archaic name
Ethanoic Acid is the modern IUPAC name.
The structure is CH3COOH in both cases.
Casually, scientists still use use/say 'acetic acid. However, in formal published documents/research papers is it named as 'Ethanoic Acid'.
How many H2SO4 molecules are there in 9.62 moles of H2SO4?
Use the Avogadro No. m which is 6,022 x 10^(23) atoms/molecules in one mole of a substance.
Hence in 9.62 moles , there are
9.62 x 6.022 x 10^(23) = 5.79.. x 10^(24) molecules.
How you measure strength of an acid?
At its simplest ;
Use litmus paper. ; it will show different shades of red depending on the strength of the acid. i
Use Universal Indicator (UI) ; it will show different shades of red depending on the strength of the acid. However, it is more sensitive than litmus paper.
Finally,, use a pH meter. It has an electronic probe. The dial on the meter will show '0' strongest acid to '6' weakest acid.
If you have a weak heart, choosing heart-healthy foods can support overall cardiovascular health. Focus on a balanced diet rich in vegetables, fruits, whole grains, beans, lentils, nuts, seeds, and lean protein such as fish or skinless poultry. Foods containing healthy fats, including olive oil and avocados, can also be beneficial. Limit foods high in salt, added sugar, saturated fat, and trans fat, such as processed foods, fried items, and sugary drinks. Maintaining appropriate portion sizes is also important. If you have heart failure or another heart condition, your doctor or dietitian may recommend specific limits on sodium and fluids based on your individual needs.
H2SO4 is NOT an element.
It contains in combination, three elements, viz., hydrogen(H) , sulphur(S) , and oxygen )O).
A COMPOUND!!!!!
Compounds are a combination of atoms of different elements.
H2SO4 has three different elements present.
What is the name of H2SO4 acid?
H2SO4 is Sulphuric Acid
Do NOT confuse with
H2SO3, which is Sulphurous Acid'.
Note the spelling., and the number of oxygens present. They are two different acids.
What salts does sulfuric acid make?
Sulfuric acid can form salts by reacting with metals, metal oxides, metal hydroxides or metal carbonates. Some common salts produced from sulfuric acid include sulfates such as sodium sulfate (Na2SO4), copper sulfate (CuSO4) and zinc sulfate (ZnSO4).
What metal causes no reaction when reacting with sulfuric acid?
Gold and Platinum.
Gold can be made to react in 'aqua regia' .
Aqua regia' is an archaic name for a mixture of hydrochloric acid and nitric acid .
Platinum is used as electrodes in electrolysis owing to its unreactivity.
When sulfuric acid reacts with a metal, hydrogen gas is produced along with the corresponding metal sulfate. The reaction involves the displacement of hydrogen from the acid by the metal. The rate and intensity of the reaction depend on the reactivity of the metal with sulfuric acid.
What salt is formed in the reaction by calcium carbonate and hydrochloric acid?
The (chemical) salt is calcium chloride. ( CaCl2)
What is calcium plus hydrochloric acid called?
It's called a chemical reaction.
Word eq'n
Hydrochloric Acid + Calcium = calcium chloride + hydrogen.
Balanced reaction eq'n.
2HCl(aq) + Ca(s) = CaCl2(aq) + H2(g)
NB
General Acid reactions.
Acid + Alkali = Salt + Water
Acid + Base = Salt +Water
Acid + Metal = Salt + Hydrogen ( The above system).
Acid + Carbonate = Salt + Water + Carbon Dioxide.
Hydrochloric acid plus calcium chloride?
When hydrochloric acid reacts with calcium chloride, it forms calcium chloride and hydrogen gas. The chemical equation for this reaction is: 2HCl + CaCl2 -> CaCl2 + H2. This reaction is a double displacement reaction.
Acids react with what active ingredient to make bubbles?
Active ingredients are metals and carbonates.
Acid + Metal = Salt + Hydrogen(possibly bubbles)
Acid + Carbonate = Salt + Water + Carbon Dioxide (Definite bubbles).
NB Try at home a little experiment.
Vinegar + Baking Powder. bubbles will be released.
The actual reaction is .
Ethanoic(Acetic) Acid + Sodium hydrogen(bi)Carbonate = Sodium Ethanoate(Acetate) + Water + Carbon Dioxide(Effervescence/bubbles)_.
CH3COOH + NaHCO3 = CH3COONa + H2O + CO2
Why do some acids not contain oxygen?
'HCl' Hydrochloric Acid does not contains oxygen.
Any Halogen Acid.
In modern chemistry we know that the acid component is the ' H^(+) ' cation.
However, the word 'oxygen' from the Classical Languages means ' Acid Maker/Generator'.
What are some foods that contain acids?
Limes, Lemons, Oranges, Grapefruit.
Apples, Pear,
Strawberries, Blackberries, Raspberries, Tayberries, Blackcurrants, RedCurrents.
Any non=tropical fruit.
Also used as a sauce, rather than a foodstuff, vinegar (Ethanoic/Acetic Acid). ,
