How do you find the equivalent mass of a compound?
To calculate the equivalent mass of a base, simply divide the molar mass of the base by the number of hydroxyl groups. Take, for example, calcium hydroxide Ca(OH)₂. A few simple calculations yield an equivalent of 37g/mol. To find the equivalent of an acid, divide the acid’s molar mass by the number of protons.
What is equivalent of a compound?
An equivalent (symbol: officially equiv; unofficially but often Eq) is the amount of a substance that reacts with (or is equivalent to) an arbitrary amount (typically one mole) of another substance in a given chemical reaction.
How do you find the equivalent weight of an element?
The concept of equivalent weight has been displaced by that of molar mass, which is the mass of one mole of a substance. The equivalent weight of an element is its gram atomic weight divided by its valence (combining power).
What is equivalent mass of H2SO4?
Sulphuric acid contains two replaceable hydrogen. Hence, the equivalent weight of sulphuric acid is 49u.
How do you find the equivalent weight of CaCO3?
What is the equivalent weight of calcium carbonate (CaCO3)?
- Answer: 50.
- Mass of Calcium (Ca) = 40.
- Mass of Carbon (C) = 12.
- Mass of Oxygen (O) = 16.
How do you find the equivalent mass of NaOH?
To begin, we must determine the molecular weight of sodium hydroxide (NaOH). Sodium has a molecular weight of 23 g/mol, oxygen has a molecular weight of 16 g/mol, and hydrogen has a molecular weight of 1 g/mol. Now, the molecular weight of sodium hydroxide will be: Mol. wt = 23 + 16 + 1 = 40 g/mol.
What is the equivalent mass of caco3?
50.045 grams
The equivalent weight of calcium carbonate (CaCO3) is 50.045, as calculated above. One equivalent of CaCO3 is therefore 50.045 grams of CaCO3.
What is equivalents of NaOH?
Hence, the equivalent weight of NaOH is 40g/mol.
How do you find the number of equivalents?
EW is the equivalent weight in g/equivalent. It is calculated by dividing the molecular weight of solute by the number of equivalents per mole of solute (Equation 2). For acids, the number of equivalents per mole is the number of H+ ions contributed by the acid per mole of acid.
What is the equivalent mass of na2co3?
106
Therefore the equivalent mass of sodium carbonate is 106 for the given reaction.
What is the equivalent weight of k2 cr2 o7?
49g/eq
Hence, the equivalent weight of ${K_2}C{r_2}{O_7}$ in acidic medium will be 49g/eq.
What is the equivalent weight of h2so4?
49u
Sulfuric acid has two hydrogen atoms that can be replaced. As a result, Sulphuric acid’s equivalent weight is 49u.
What is equivalent weight of h2so4?
What is the equivalent weight of caco3?
50.045
The equivalent weight of calcium carbonate (CaCO3) is 50.045, as calculated above.
How do you find the equivalent mass of HCL?
Solution : equivalent mass of an acid `=(“Molar mass of the acid”)/(“Basicity of the acid “)` Equivalent mass of `HCI=(36.5)/(1)` `=36.5` .
How do you find the equivalent weight of NaOH?
How do you find the equivalent weight of cuso4 5h2o?
Expert-verified answer 63.5 + 32 + (9 x 16) + (10 x 1) = 63.5 + 32 + 144 + 10 = 249.5 g/mol.
How do you find the mass of a substance?
The formula for determining a substance’s equivalent mass depends on the class of the compound in question. It is easy to find the equivalent mass for oxides, for example: divide the molar mass of the compound by the valence of the non-oxygen element multiplied by its number of atoms.
What is the formula for equivalent mass?
Equivalent Mass = Atomic Mass Valency. ext {Equivalent Mass}=\\dfrac { ext {Atomic Mass}} { ext {Valency}}. Equivalent Mass = ValencyAtomic Mass . Sometimes if we don’t know the valency of the atom, we cannot find the equivalent mass.
How do you calculate the mass of a base in grams?
To calculate the equivalent mass of a base, simply divide the molar mass of the base by the number of hydroxyl groups. Take, for example, calcium hydroxide Ca (OH)₂. A few simple calculations yield an equivalent of 37g/mol.
How do you find the equivalent mass of an acid?
The equivalent masses of acids, bases, and salts are calculated as follows: Equivalent mass of an acid = molecular mass of the acid/basicity. Equivalent mass of a base = molecular mass of the base/acidity. Equivalent mass of a salt = molecular mass of the salt/total positive valency of metal atoms.