Chemistry Reflection 3

Today, we learned more about relative molecular mass and relative atomic mass. We had to do a worksheet on relative molecular mass.  So to find the relative molecular mass we need to find the relative atomic mass of all the elements in a compound and then add them so it's like

H₂O

H₂: 1 x 2

O: 16 x 1

16+2=18 gr/mol

The number that goes first is the relative atomic mass so the relative atomic mass of hydrogen is 1 while oxygen's is 16. The second number shows how many of the atoms of the elements are there, So, this means that are only 1 atom of oxygen while there are 2 atoms of hydrogen.