Identifying different chemical soloutions

Is there a chemical test to see if a solotion is ethanoic acid without using an indicator and what is the chemical equation for it?

Acid base titration's.

Outline a titration procedure for determining the exact concentration of the aqueous nitric acid. Assume that aqueous sodium carbonate of concentration 0.500 mol dm3 is available.

Calculating moles from the number of atoms.

How many moles of Pb in 9.3*10^15 atoms of Pb?

Understanding limiting reagents.

How do you find the limiting reagent and how much the other one is in excess?

Working with heat transfer.

What mass of water rises by 15 degrees Celsius when it absorbs 2646 Joules?