Supposed a student places a beaker on his balance and does not tare it, from the table that shows the data before and after he adds distilled water, sodium acetate, and acetic acid, the mass of the beaker and sodium acetate would be as follows:
mass of (beaker + distilled water + sodium acetate) = 73.740 g
mass of (beaker + distilled water) = 70.550 g
mass of sodium acetate = 73.740 - 70.550
= 3.190 g
Since the mass of the beaker was not tared initially, it means the mass is 56.660 g while that of the sodium acetate is 3.190 g
More on weighing substances can be found here: https://brainly.com/question/16075227