First of all the formula for hydrochloric acid is 'HCl'. NOT 'hcl'. For single letter symbols it is ALWAYS a CAPITAL letter ; hence hydrogen is 'H'. For two letter symbols , the first letter is a CAPITAL letter and the second letter is lower case., hence chlorine is 'Cl;. This is the recognised international standard.
To answer you question .
HCl is hydrogen chloride , which is a gas. However, it readily dissolves in water to form hydrochloric acid. As it dissolves it form the ions 'H^(+)' and 'Cl^(-)'. It is the 'H^(+)' ion that is the acid component and pH is measured against it.
HCl does NOT remain undissociated in water.
Yes I agree it can be confusing. The formula HCl is the same for the gas and the acid.
Al2O3 + 3H2SO4 = Al2 (SO4)3 + 3H2O
We note that the molar ratios are
1:3::1:3
By Equivalence
0.89 : 2.67 ;; 0,89 :2.67
So moles of aluminium sulphate produced is 0.89
Using the equation
moles = mass(g) / Mr
Then mass = moles X Mr
Refer to the Atomic Masses in the Periodic Table to find the Mr(Relative Molecular mass of Al2(SO4)3
Hence
Al x 2 = 27 x 2 = 54
S x 3 = 32 x 3 = 96
O x (4 x 3 = 12) 16 x 12 = 192
54 + 96 + 192 = 342 ( Mr of Al2(SO4)3 )
Hence
mass(g) = 0,89 X 342 = 304.38 g (This is the 100% theoretical yield. Experimentally it will be less , owing to losses in the filter paper , spillages etc., )
HCl is a colourless gas, with pungent odour.
When dissolved in water to form hydrochloric acid , it remains colourless.
to cancel an acid you need to add a base (alkaline) and vice versa.
so for example of this you take vinegar (an acid) and add baking soda (an alkaline) you'll get a chemical reaction releasing gas (in this case CO2) and what your left with is a mixture of water and salt.
YES!!!
Here are the general acid reactions.
Acid + Base = Salt + Water
Acid + Alkali - Salt + Water
Acid + metal = Salt + Hydrogen
Acid + Carbonate = Salt + Water + Carbon Dioxide.
Here are some examples
2HCl + Na2O = 2NaCl + H2O
HNO3 + KOH = KNO3 + H2O
H2SO4 + Zn = ZnSO4 + H2
2CH3COOH + CaCO3 = Ca(CH3COO)2 + H2O + CO2
HCL + Zn --> ZnCl + H2 (Displacement reaction)
Use the equation
Moles(m) = mass(g) / Mr (Relative Molecular Mass).
To calculate the Mr , refer to the Periodic Table, for Atomic Masses.
For H2SO4
We have
H x 2 = 1 x 2 = 2 ( 1 is the atomic mass of H )
S x 1 = 32 x 1 = 32 ( 32 is the atomic mass of S).
O x 4 = 16 x 4 = 64 (16 is the atomic mass of O).
Adding
2 + 32 + 64 = 98 the Mr of H2SO4
Substituting into the eq'n above
1 mole = mass(g) / 98
Algebraic rearrangement
mass(g) = 1 mole X 98(Mr)
mass(g) = 98 grams. is the mass of 1 mole of H2SO4 .
An Amino acid is an organic molecule with an amino functional group at one end of the molecule and a carboxylic acid function group at the other end.
Here is the structure of one such molecule.
H2N - CH2 - C(=O)-OH
Two of these molecules react together. The acid functional group react with the basic (amino) functional group to form a peptide link and extend the molecular chain . e.g.
H2N - CH2 - **C(=O)- N(-H)-**CH2 - COOH
The bit hi-lighted is the peptide link.
YES!!! HCOOH (Note the method of writing the formula), is Methanoic (Formic) Acid.
Neither acid, because of the common ion effect.
By adding H2SO4 and/or H3PO4 to CH3COOH )Vinegar) you are just increasing the 'H^(+)' ions; the common ion.
To neutralise vinegar sol'n use sodium carbonate (Soda Crystals/Washing Soda).
Remember Acids react with Carbonates to form the salt , water, and carbon dioxide.
Here is the BALANCED reaction eq'n
2CH3COOH + Ns2CO3 = 2[CH3COO=Na+] + H2O + CO2
Here is the UNbalamced reaction between vinegar and sulphuric acid
H2SO4 + CH3COOH = = 3H^(+) + SO4^)2-) + CH3COO^- No neutral salt or water. )FOES NOT WORK) .
What happens??? It reacts!!!!
You will see effervescence(bubbles) of hydrogen gas being liberates, and the zinc metal slowly disappearing.
Here is the Balanced reaction eq'n
Zn(s) + 2HCl(aq) = ZnCl2(aq) + H2(g) .
AgBr2 doesn't have a widely accepted common name. However, based on chemical nomenclature conventions, here are two possibilities:
• Dibromosilver: This is the most straightforward name based on the constituent atoms: di- (two) + bromo (bromine) + silver.
• Silver(II) bromide: This name follows the Stock nomenclature system, indicating a silver cation with a +2 charge (though silver typically doesn't form stable +2 ions) combined with two bromide anions.
It's important to note that AgBr2 is not a common compound. Silver typically forms a 1:1 halide salt with bromine, resulting in silver bromide (AgBr), which is well-known for its light sensitivity and use in photography.👇👇
If you meanCH3CH2CH2COOH , then it is butanoic acid.
Normally the ethylene groups are bracketed as CH3(CH2)2COOH, writing ity as CH2CH22COOH indicates that there are '22' *(twenty two) carbons present , which in this case would be an impossibility .
All acids have positive charge.
Both mineral and carboxylic acids ionise to some degree in solution producig hydrogen ions H^(+). , Notice they are plus/positive. It is these ions that are the avid component on a substance.
E.g. Mineral acid H2SO4 = 2H^(+) + SO4^(2-)
e.g. Carboxylic acid CH3COOH = CH3COO^(-) + H^(+)
The pH scale indicates the number of H^(+) ions in a solution. The lower the number , the more H^(+) ions.
Traditionally, if this reaction is taking place in solution, instead of writing
NaOH + HCl --> NaCl + H2O
you would write
OH- + H+ --> H2O
because when the compounds are in the presence of water, they do not actually attach to each other.
NaOH becomes Na+ and OH- ions, and Na+ will not attach to anything else in water.
Similarly, HCl becomes H+ and Cl- ions, and Cl- will not attach to Na+ in water. (Think about salt in water; it dissolves).
Na+ and Cl- are called "spectator ions" because they do not participate in the reaction. They are just floating around in the beaker, so scientists do not include them in the final equation. What is left is OH- and H+ ions which makes H2O.
pH = 4 is mildly acidic.
The pH scale is
[H = 1 strongly acidic
pH = 4 mildly acidic
pH = 7 neutral ( Water)
pH = 9 mildly alkaline
pH = 14 strongly alkaline.
Formic Acid is the archaic common name. Its modern IUPAC name is Methanopic Acid.
The formula is HCOOH
Caustic soda, also known as sodium hydroxide, is not flammable in its pure form. It is a highly reactive compound that is soluble in water and often used in various industrial processes such as manufacturing soaps, detergents, and paper. However, caution should be exercised when handling caustic soda, as it can react violently with certain materials, releasing heat and potentially causing fires or explosions. When stored or transported, it is essential to follow proper safety protocols to prevent accidental reactions.
Chemical Iran, a reputable company in the chemical industry, ensures the safe handling and distribution of caustic soda and other chemicals. With a commitment to quality and safety, Chemical Iran adheres to strict guidelines and regulations to mitigate any potential risks associated with handling caustic soda, providing customers with peace of mind and reliable products for their industrial needs.
This statement reflects a common idea in literary theory that categorizes poets based on the strength of their writing and themes. Strong poets are considered to be those who have a profound impact on their readers and society, while weak poets may lack depth or originality in their work. This classification is subjective and can vary depending on individual perspectives and preferences.
The narrator suggests that the character is physically or emotionally exhausted, lacking strength or energy. This could indicate that the character is experiencing hardship or fatigue.
God can use the weak to guide the strong by showing that strength alone is not enough to achieve success or righteousness. The weak can demonstrate humility, perseverance, and faith, which can serve as examples for the strong to follow and learn from. God may also use the weak to challenge the strong to rely on Him for guidance and wisdom.
Robert Boyle's book on acids and alkalis, "The Sceptical Chymist," was important because it questioned traditional alchemical theories and laid the foundation for modern chemistry. Boyle proposed the idea that matter was made up of atoms and introduced the concept of chemical elements as distinct substances. His work helped to shift the focus of chemistry from mystical beliefs to empirical observations and experimentation.
Products that typically contain acid include vinegar, citrus fruits, batteries, certain cleaning products (e.g. toilet bowl cleaners, oven cleaners), and some skincare products (e.g. exfoliating acids like glycolic acid or salicylic acid).
H2SO4 is a chemical.
I think you mean , 'What elements are in H2SO4'.
They are Hydrogen (H)
Sulphur(S) and Oxygen (O).
H2SO4 is Sulphuric Acid.
It is a combination of '--
2 atoms of hydrogen
1 atom of sulphur
4 atoms of oxygen.