Question

Alka-Seltzer Reaction:

(a) Mass of the Calorimeter (two empty cups) in g: 4g

(b) Mass of the RoomTemp. water and the calorimeter in g: 53.0g

(c) Calculated mass of the RoomTemp. water in g [(b)-(a)]: 53.0-4=49g

(d) Temp. of the RoomTemp. Water in C before adding the alka-seltzer: 20.5c

(e) Mass of the two Alka-seltser tablets in g: 6.5g

(f) Temp. of the RoomTemp. water AFTER the addition of the alka-seltzer tablets every 15 seconds until it stabilizes (levels off): 19.8c, 18.2c, 17.5c, 17.0c, 16.5c, 16.3c

(g) Calculated Heat Lost OR gained theWater in J (SHOW WORK and answer!!), q=mcDt, (Mass of RoomTemp. Water in g)(4.18J/gC)(Final Temp - Initial Temp):

(h) Mass of the Calorimeter, Water, and reacted alka-seltzer (products) in g: 58.4g

(i) Mass LOST during the reaction in g [(h) - ((e)+(b))]:

not sure how to do G or I

Answer 1

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