Mass is the quantity of matter in a body, or the amount of material in a substance. It is measured by the SI unit kilogram (kg). A mass without size (e.g., a mass of 1 kg) is called a pure numerical quantity. Mass can be expressed using the SI prefixes: micro-, milli-, kilo-, mega-, giga-, tera- or peta- (10–9, 10–6, 103, 109, 1012 and 1015 respectively).
The mass of an object determines its gravitational attraction to other objects with which it interacts; as such, some sort of mass is required for all forms of matter that have been observed so far.
The mass of Cuso4 is 104.08 g/mol.
Cuso4 is an ionic compound that contains one cation and one anion. Although it has a formula weight of 101 amu, the mass of Cuso4 can be calculated using the periodic table.
The atomic numbers of both elements are 8 (oxygen) and 18 (sodium). The valence of each element is 4, so we use these values to determine the number of atoms in each ion. Cuso4 contains two oxygen atoms for every sodium atom. This means that there will be two oxygen ions for every sodium ion in Cuso4. The formula for this compound is NaO4-, which tells us that there are two oxygen ions per Na+ ion in Cuso4.
Last modified: October 2, 2022