Borax, also known as sodium borate, sodium tetraborate, or disodium tetraborate, is an important boron compound, a mineral, and a salt of boric acid. It is usually a white powder consisting of soft colorless crystals that dissolve easily in water.
There are no water molecules in borax.
Borax can refers to a number of compounds all of which are ionic not molecular.
Compound
Na4B4O7 (anhydrous)
Na4B4O7.5H2O (pentahydrate)
Na4B4O7.10H2O (decahydrate) (the most commonly encountered form)
The number of atoms in the formula units are
15 (anhydrous)
30 (pentahydrate)
45 (decahydrate)
I hope the question was not given by a teacher!
A molecule of anhydrous borax contains
2 atoms of sodium
4 atoms of boron and
7 atoms of oxygen.
The hydrated molecule contains ten molecules of water, so in all, it makes
2 atoms of sodium
4 atoms of boron
17 atoms of oxygen and
20 atoms of hydrogen.
The chemical formula of anhydrous borax (sodium tetraborate) is Na2B4O7; 2 sodium atoms, 4 boron atoms, 7 oxygen atoms.
Borax decahydrate has 17 oxygen atoms.
four elements
Ten: Na2B4O7·10H2O
A molecule contain atoms.
43
8
NH3; One atom of nitrogen and three atoms of hydrogen.
Mg(NO3)2 is magnesium nitrate and it is not an element, but is a compound. Each molecule has 1 Mg atom + 2 N atoms + 6 O atoms for a total of 9 atoms per molecule. The more molecules you have, the more atoms you have.
One molecule of C6H12O6 has 6 carbon atoms, 12 hydrogen atoms, and 6 oxygen atoms.
Each molecule of CO contains one atom of carbon and one of oxygen.
Depends on the bonding it includes and the number of atoms of each element it includes.
13 atoms are in one molecule of borax but that is surrounded by 10 water of hydration molecules containing 3 atoms each; giving a total of 43 atoms altogether in and around one borax molecule.
NH3; One atom of nitrogen and three atoms of hydrogen.
Water molecule (H2O) has 2 hydrogen atoms and 1 oxygen atom.
In each molecule of NO3, there is one nitrogen atom and there are three oxygen atoms.
At standard temperature and pressure, nitrogen exists in molecules with two atoms each.
The answer is four. The molecular formula of any element or compund gives you the number of atoms of each element in a molecule. For phosphorus the most common form is P4 . The molecules are tetrahedral with a P atom at each apex.
Percentage composition= (mass of the element/mass of the molecule)*100 The fraction of the molecule's mass that comes from the element's mass
Mg(NO3)2 is magnesium nitrate and it is not an element, but is a compound. Each molecule has 1 Mg atom + 2 N atoms + 6 O atoms for a total of 9 atoms per molecule. The more molecules you have, the more atoms you have.
The amount of atoms of each element that make up a single molecule.
molecular formula
at least two
1 Carbon atom and 2 Oxygen atoms. The formula is CO2, which means that there are one atom of carbon and two atoms of oxygen in one molecule. The subscripts tell you the numbers of each element. No number is understood to be one.