Question

Ke dalam 150 ml larutan asam sulfat 0.2 molar, jika dicampurkan 100 ml larutan asam sulfat 0.3 molar. konsentrasinya menjadi

Answer 1

Larutan Asam Sulfat 1
V = 150 ml
M = 0.2 M
mol = V x M
= 150 x 0.2
= 30 mmol

Larutan Asam Sulfat 2
V = 100 ml
M = 0.3 M
mol = V x M
= 100 x 0.3 
= 30 mmol

Volume Total = 100 + 150 = 250 ml
Mol total = 30 + 30 = 60 mmol
Molaritas = mol / volume
= 60 / 250
= 0.24 M