Answer:
The final water level in the burette is
![23.4\ cm^3](https://img.qammunity.org/2021/formulas/mathematics/college/wba872jn0ha9n7lvn7ivqpu8mpsmbwx5ky.png)
Explanation:
It is given the water level in a burette is
. The burette loses 55 drops, each one with an average volume of
.
If each drop has a volume of
, then 55 drops have a volume of
![55*0.12\ cm^3=6.6\ cm^3](https://img.qammunity.org/2021/formulas/mathematics/college/g9a79c08euzu16mvk8w72p3ywy7jpaz8id.png)
The new level of water in the burette is the subtraction of the original contents minus the volume loss.
New volume =
![30\ cm^3-6.6\ cm^3](https://img.qammunity.org/2021/formulas/mathematics/college/z515qv2m4ye5d1ezd66sl58sni8uv7o5hf.png)
New volume =
![23.4\ cm^3](https://img.qammunity.org/2021/formulas/mathematics/college/wba872jn0ha9n7lvn7ivqpu8mpsmbwx5ky.png)
The final water level in the burette is 23.4\ cm^3