This question has not an answer because is not complete.
Half of 2.4 L given in mL is 1200 mL
Adding 20 mL fresh pure water to fresh pure water: the pH remain unchanged.
Float
Float
An object of 1.0 g per ml will remain suspended in water because the density of water is 1.0 anything below 1.0 will float and anything above 1.0 will sink. There fore, 1.0 will remain suspended because that is the buoyant point.
That is 3.75 ml.
1900 ml
It would sink. The density of water is 1g/mL. Anything with a greater density will sink.
That is 4,250 ml.
That is 600,000 ml.
That is 12,000 ml.
That is 4,000,000 ml.