what is the solubility of na₂so₄ at 30°c? 40 g/100 g h₂o 50 g/100 g h₂o 30 g/100 g h₂o 20 g/100 g h₂o

Answer

Explanation:

Step1: Locate temperature on graph

Find 30°C on the x - axis of the solubility - temperature graph.

Step2: Read solubility value

Read the corresponding solubility value on the y - axis for Na₂SO₄ at 30°C. (Assuming from general solubility knowledge of Na₂SO₄, the solubility of Na₂SO₄ at 30°C is around 40 g/100 g H₂O)

Answer:

A. 40 g/100 g H₂O