Answer to Question #55546 in General Chemistry for Tracy Guido
Avg mass bismol tablets 1.021
Mass weighing boat 10.080 g
Mass emptied weighing boat .003
subtract two masses 10.077
Measured mass 2nd filter paper 0.116G
Watch glass 54.756
60 mL of 0.2 M Na3PO3 i
1 calculate moles of BiPO4 that were formed.
2 sample used 50 ml of solution find concentration in moles/L of Bi3+ in solution before you added Na3PO4.
3 total number of moles of Bi in the 250 ml volumetric flask.
4 (a 1:1 ratio), calculate the number of moles of bismuth subsalicylate you added to your original beaker and convert this to grams.
5 Divide grams of bismuth subsalicylate (6) by grams of pepto bismol used (1). This will give you an answer in units of g Bi-SS/g PB tablet.
6 , find the mass of Bi-SS tablet. Hint you have g Bi-SS g PB and you have g PB tablet.
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