Question

question 4 4 pts which of the following measuring devices (used in your chemistry lab) gives the most precise measurements? an analytical balance a volumetric flask a buret a transfer pipet question 5 4 pts in an experiment, a student obtained the following masses for a product: 0.651 g, 0.643 g, 0.648 g, 0.609 g, and 0.646 g. what is the median value of the data? 0.643 g 0.609 g 0.648 g 0.651 g 0.646 g

Explanation:

Question 4

An analytical balance is designed to measure mass with very high precision, often to the fourth or fifth decimal place. Volumetric flasks, burets, and transfer pipets are used for measuring volume with good precision but not as precise as an analytical balance for mass - related measurements.

Step1: Arrange data in ascending order

$0.609\ g, 0.643\ g, 0.646\ g, 0.648\ g, 0.651\ g$

Step2: Find the middle value

Since there are 5 values (an odd - numbered data set), the median is the third value.

Answer:

An analytical balance

Question 5