Answer : The total weight of flask when we are adding the sugar is, 193.5 grams
Explanation : Given,
Weight of sugar = 3.5 grams
Weight of empty flask = 190 grams
Now we have to determine the total weight of flask when we are adding the sugar.
Total weight of flask = Weight of empty flask + Weight of sugar
Total weight of flask = 190 grams + 3.5 grams
Total weight of flask = 193.5 grams
Thus, the total weight of flask when we are adding the sugar is, 193.5 grams