Answer:
15.46%
0.667 g/mL (more o less) 0.052 g/mL (standard deviation)
Step-by-step explanation:
To solve the problem, it is necessary calculate the average:
(0.608 g/mL + 0.705 g/mL + and 0.689 g/mL) / 3= 0.667 g/mL
standard deviation= 0.052
Now, let us calculate the % error:
[(0.789 g/mL - 0.667 g/mL) / 0.789 g/mL] * 100% = 15.46%