Question

convert 12.64g NaOH into moles

Answer 1

Find the molar mass of NaOH, which is in units of gram per mole.
The molar mass of NaOH will be the sum of the molar masses of Na, O, and H.
Get a Periodic Table, the molar masses are on there.

Answer 2

40g is the molar mass for NaOh and then what

Answer 3

Yesh, 40 g/mol. Use dimensional analysis to find the amount of moles of NaOH.

Answer 4

The molar mass \(M\) of a substance,
is equal to the mass \(m\) of an amount of \(n\) moles of it.
\[M= m/n\]
Solve for \(n\), and plug in the values you have for \(m\) and \(M\)