Q98
General ScienceChemistry
The usual pH of sea water ranges from
- a.7.5 – 8.5
- b.8.5 – 9.5
- c.9.5 – 10.5
- d.10.5 – 11.5
Answer: (A) 7.5 – 8.5
Sea water is mildly alkaline because of dissolved carbonates and bicarbonates, with pH usually between about 7.5 and 8.5 (surface average about 8.1). Values of 9.5 and above would be strongly alkaline.