Question

Atomic mass of sodiummetaborate

Answer 1

NaBO2 = 23+11+16(2)

= 66gms/mole.

Answer 2

$\huge{\textbf{NOTE:}}$

$\bigstar \textsf{The chemical formula of the compound should be known .}\\\\\bigstar \textsf{After the formula is written we can calculate the atomic mass}\\\\\bigstar \textsf{We need to know the mass of each element that makes the compound}\\\\\bigstar \textsf{Then we will add the masses and get the total mass .}\\\\\bigstar\textsf{After adding , we will get the required answer}\\\\\bigstar \textsf{The unit of atomic mass is grams/moles}$

$\huge\textbf{{Formula of sodium metaborate }}$

$\textsf{Formula of the compound is :} \sf{NaBO_2}$

$\underline{\textbf{\huge{Atomic mass}}}$

( Na ) = 23 .

( B ) = 11 .

( O ) = 16 .

$\textsf{Mass of compound = 23 + 11 + 16 ( 2 )}\\\\\textsf{Mass of compound = 23 + 11 + 32}\\\\\textsf{Mass of compound = 34 + 32}\\\\\textsf{Mass of compound = 68}$

The atomic mass is 66 grams/moles .