Question

There was the lab in which we placed Alka Seltzer tablets in different millimeters of water and vinegar and we were asked to calculate the mass of carbon dioxide generated for each of the trials.
The teacher gave us a hint to add the mass of the beaker with water and the mass of the alka seltzer tablet and then subtract the mass of the beaker with water and alka seltzer in it. However, whenever I tried to calculate, I got a negative number and I don't think that's right. Please help!
Mass of Beaker with Water Mass of Alka Seltzer Tablet Mass of Water and Alka Seltzer
Trial 1 183.5 g 4.1 g 187 g
Trial 2 169.3 g 3.59 g 187.49 g
Trial 3 0.00 g 3.25 g 187.40 g

Answer 1

I dont believe your data is correct at all.