Answer : The mass of the empty beaker is, 65 grams
Explanation : Given,
Initial mass of water = 50 g
Final mass of water = 115 g
Now we have to determine the mass of empty beaker.
Mass of empty beaker = Final mass of water - Initial mass of water
Mass of empty beaker = (115 - 50) grams
Mass of empty beaker = 65 grams
Therefore, the mass of the empty beaker is, 65 grams