CuCl2 + 2 NaNO3 → Cu(NO3)2 + 2 NaCl 1) If 1.56 moles of copper (II) chloride, CuCl2 react with 2.02 moles of sodium nitrate, NaNO3, how
many moles of sodium chloride, NaCl, can be formed? What are the limiting and excess
reactants? How many grams of the excess reactant remain when the reaction stops? If 1.26
moles of sodium chloride are actually produced, what is the percent yield of sodium chloride?

First question:

As the pH meter gives a specific level of acidity instead of a physical change, it is more accurate in numbers making it easier to distinguish smaller differences in pH.

2nd question:

The pH meter gives a digital readout.

The pH meter uses numbers instead of colors.

The pH meter can distinguish between smaller differences in pH than pH strips can.

The one not mentioned above isn't true ^