Question

Mohon bantuan nya nomer 5

Answer 1

Stoikiometri ya?
Cara ngitungnya gini:
(35. 75%) + (17.25%)= 26.25+ 4.25= 30.5

Answer 2

Massa rata" = (%kelimpahan isotop Cl - 35 x massa isoto Cl - 35) + (%kelimpahan isotop Cl - 37 x massa isotop Cl - 37)

(75% x 35) + (25% x 37)
= (75/100 x 35) + (25/100 x 37)
= (2625/100) + (925/100)
= 2625 + 925/100
= 3550/100
= 35,50 sma (satuan massa atom)
jadi, massa atom rata" Cl adalah 35,50.

semoga membantu :)