Answer:
2.04 g/cm3
Explanation:
Density = mass ÷ volume
= 5100 ÷ 2500
=2.04 g/cm3
pH = 5.7
pH = -log[H^+]
For HCl pH = -log[HCl] = - log [2.10 x 10⁻⁶ ] = 5.7
Answer:5
Explanation:(H3) is 3 (H3)2 is 5
