Acertain element x has four isotopes. 4.350% of x has a mass of 49.94605 amu. 83.79% of x has a mass of 51.94051 amu. 9.500% of x has a mass of 52.94065 amu. 2.360% of x has a mass of 53.93888 amu. what is the average atomic mass of element x?

The average atomic mass of the element X is 51.99592 amu

Explanation:

Mass of isotope 1 = 49.94605 amu

% abundance of isotope 1 = 4.350% =

Mass of isotope 2 = 51.94051 amu.

% abundance of isotope 2 = 83.79% =

Mass of isotope 3 = 52.94065 amu.

% abundance of isotope 2 = 9.500% =

Mass of isotope 4 = 53.93888 amu.

% abundance of isotope 2 = 2.360% =

Formula used for average atomic mass of an element :

Therefore, the average atomic mass of the element X is 51.99592 amu

2h2o2--> 2h2o + o2

this reaction is of the spontaneous decomposition of hydrogen peroxide down into water and oxygen.

add 2 molecules of hydrogen peroxide and 2 molecules of water. since oxygen is naturally diatomic, the total number of atoms of each element is now the same on both sides of the equation so it is balanced.

this may not be entirely correct but let me know.