What is the name of the NaAlO2 compound?
First calculate the amount of each atom in NaAlO2:
Na: 1, Al: 1, O: 2 Then find the atomic weight for each element on the periodic table:
Na: 22.98976928, Al: 26.9815386, O: 15.9994 Now calculate the sum of the products of the number of atoms and the atomic weight:
Molar mass (NaAlO2) = ∑ Counti *Weighti =
Count(Na) * Weight(Na) + Count(Al) * Weight(Al) + Count(O) * Weight(O) =
1 * 22.98976928 + 1 * 26.9815386 + 2 * 15.9994 =
81.97011 g / mol
| Appearance |
|---|
| Sodium aluminate appears as a white crystalline solid. |
Examples of reactions for NaAlO2
| The equation | Reaction type |
|---|---|
| NaAlO2 + H2O = NaOH + Al(OH)3 | Ion exchange |
Calculation of molar mass
- Any chemical element. Make the first letter of the chemical symbol capital and use the remaining letters in lowercase: Ca, Fe, Mg, Mn, S, O, H, C, N, Na, K, Cl, Al.
- Functional groups: D, Ph, Me, Et, Bu, AcAc, For, Tos, Bz, TMS, tBu, Bzl, Bn, Dmg
- parentheses () or square brackets [].
- Chemical name.
The molar mass calculator also displays the compound name, Hill’s formula, elemental composition, mass percentage composition, atomic percentage composition and allows you to convert weight to number of moles and vice versa.
Calculation of molecular mass (molecular mass)
To calculate the molecular mass of a chemical compound, enter its formula, indicating its isotope mass after each element in square brackets.
Examples of molecular weight calculations: C[14]O[16]2, S[34]O[16]2.
define
- Molecular mass ( molecular weight ) is the mass of one molecule of a substance, expressed in atomic mass units (u). (1 and equal to 1/12 the mass of one carbon-12 atom)
- Molar mass ( molecular mass) is the mass of one mole of a substance and is expressed in g/mol.
- Mole is a standard scientific unit of measurement for large quantities of very small objects such as atoms and molecules. One mole contains exactly 6,022 × 10 23 particles (Avogadro’s number).
Steps to Calculate Molar Mass
- Define connection: write down the chemical formula of the compound. For example, water is H 2 O, that is, it contains two hydrogen atoms and one oxygen atom.
- Find the atomic masses: Find the atomic masses of each element present in the compound. Atomic mass is usually found on the periodic table and is expressed in atomic mass units (amu).
- Calculate the molar mass of each element: Multiply the atomic mass of each element by the number of atoms of that element in the compound.
- Put them together: add the results from step 3 to get the total molar mass of the compound.
Example: Molar Mass Calculation
Let’s calculate the molar mass of carbon dioxide (CO 2 ):
- Carbon (C) has an atomic mass of about 12,01 amu.
- Oxygen (O) has an atomic mass of about 16,00 amu.
- CO 2 has one carbon atom and two oxygen atoms.
- The molar mass of carbon dioxide is 12,01 + (2 × 16,00) = 44,01 g/mol.
Masses of atoms and isotopes from the NIST article.
Sodium aluminate is an inorganic compound, a complex oxide of sodium and aluminum with the formula NaAlO2, a white amorphous substance, reacts with water.
Obtaining
- Fusion of aluminum oxide with sodium oxide:
- with its hydroxide:
- Dissolving aluminum in molten sodium hydroxide:
- Dehydration of sodium tetrahydroxyaluminate:
physical properties
Sodium aluminate forms white crystals of the orthorhombic system, cell parameters a = 0,537 nm, b = 0,521 nm, c = 0,707 nm, Z = 4.
Chemical properties
- Reacts with water (hot water faster):
- In an alkaline environment with water it forms sodium tetrahydroxoaluminate:
Application
- Product in the production of alumina.
- Mordant for dyeing fabrics.
- Production of industrial catalysts.
Yttrium aluminate is an inorganic compound, yttrium and aluminum oxide with the formula YAlO3, colorless crystals, not
Iron(II) aluminate is an inorganic compound, complex oxide of iron and aluminum with the formula Fe(AlO2)2, black crystals.
Beryllium aluminate is an inorganic compound, a complex oxide of beryllium and aluminum with the formula BeAl2O4, colorless crystals,
Lanthanum aluminate is an inorganic compound, mixed oxide of lanthanum and aluminum with the formula LaAlO3, colorless crystals.
Cobalt(II) aluminate is an inorganic compound, a complex oxide of the metals cobalt and aluminum with the formula Co[Al2O4], blue
Potassium aluminate is an inorganic compound, mixed oxide of potassium and aluminum with the formula KAlO2, colorless crystals,
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