Respuesta :

Willchemistry
Molar Mass NaOH = 40.0 g/mol

40 g ----------6.02x10²³ molecules
?? g ---------- 2.50x 10²² molecules

Mass = 2.50x10²² * 40 / 6.02x10²³

Mass = 1x10²⁴ / 6.02x10²³

Mass = 1.6611 g

hope this helps!