Answer:
14 g/L
Step-by-step explanation:
The amount of water retained in the sediment can be calculated as follows:
Amount of water retained = 35 g - 31.5 g = 3.5 g
The specific retention of the sediment is defined as the ratio of the amount of water retained to the volume of the sediment that held the water. Since the sediment is in a 250 mL beaker, its volume is 250 mL = 0.25 L.
Therefore, the specific retention is:
Specific retention = (amount of water retained) / (volume of sediment) = 3.5 g / 0.25 L = 14 g/L
So, the sediment's specific retention is 14 g/L.