Question

What was the volume of the gold to the nearest tenth of a mL? (Do not include units as you normally would if you were doing this lab on paper. The unit would be mL.) and the volume of water was 2.1.

a) 2.1 mL
b) 2.2 mL
c) 2.0 mL
d) 2.3 mL

Answer 1

Without additional data on the gold's mass or the change in water level after submerging the gold, the volume of the gold cannot be accurately determined. Reading a graduated cylinder is about estimating the meniscus level, but further information is required to calculate the volume of gold specifically.

Step-by-step explanation:

To determine the volume of the gold to the nearest tenth of a mL, it is necessary to understand how to read a graduated cylinder. The provided information indicates that the volume of water was initially 2.1 mL. Without further information such as the start and end volume or the mass and density of the gold, we cannot accurately calculate the volume of the gold. However, reading a graduated cylinder involves observing the meniscus level and estimating the value between visible markings.

According to the given examples, if the meniscus lies between two markings, one must estimate to the nearest tenth. For instance, if the bottom of the meniscus is between the 21 and 22 mL marks and closer to the 22-mL mark, a reasonable estimate might be 21.6 mL. Moreover, densities, such as the density of gold (19.30 g/mL), are used to calculate volume from mass. The mass divided by density gives the volume.

However, without specific measurements related to the gold in question, selecting one of the provided choices A) 2.1 mL B) 2.2 mL C) 2.0 mL D) 2.3 mL would be a guess and not based on actual data.