Hello detective doge here i am kinda bored wondering if anyone has any detective work for me

How many neutrons does a atom of cobalt have?

What is the correct term for living the most sustainable life you can within your current circumstances?

Achemistry student weighs out 0.306 g of citric acid (h3c6h5o7), a triprotic acid, into a 250 ml volumetric flask and dilutes to the mark with distilled water. he plans to titrate the acid with 0.1000 m naoh solution. calculate the volume of naoh solution the student will need to add to reach the final equivalence point. be sure your answer has the correct number of significant digits.