Which antacid is the most effective in terms of mass. HCl is 50mL Moore Group Am

Question

Which antacid is the most effective in terms of mass. HCl is 50mL

Moore

Group

Amount used (g)

Vol NaOH used (ml)

Trial 1

Vol NaOH used (ml)

Trial 2

Vol NaOH used (ml)

Trial 3

1

.35

9

8

7.5

2

.40

3.3

2.8

1.8

3

.39

13

11.5

10.5

4

.37

3.3

3.9

3.1

5

.37

7

7.8

6.8

Tums

Group

Amount used (g)

Vol NaOH used (ml)

Trial 1

Vol NaOH used (ml)

Trial 2

Vol NaOH used (ml)

Trial 3

1

.52

9.5

9.9

2

.53

9.5

13.1

12.2

3

.50

.51

.51

17.7

19.8

20.1

Alka seltzer

Group

Amount used (g)

Vol NaOH used (ml)

Trial 1

Vol NaOH used (ml)

Trial 2

Vol NaOH used (ml)

Trial 3

1

.52

.55

.54

45.3

50

46.4

2

.51

.55

.55

31

47.5

48

Group

Amount used (g)

Vol NaOH used (ml)

Trial 1

Vol NaOH used (ml)

Trial 2

Vol NaOH used (ml)

Trial 3

1

.35

9

8

7.5

2

.40

3.3

2.8

1.8

3

.39

13

11.5

10.5

4

.37

3.3

3.9

3.1

5

.37

7

7.8

6.8

mass effectiveness moles of HCl(aq) neutralized per tablet mass of antacid,g

Explanation / Answer

Looking at the data for the various types of tablets and NaOH volume used,

"Tums" is the most mass effective antacid tablet of the three.

Tums mass effective value in terms of volume of NaOH used was compared with the other two and found to be maximum. moles of HCl reacted = initial moles of HCl - moles of NaOH added for the reaction.

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