The student is provided with the carbonate of an unknown metal, X,CO3. The student measures the mass loss when the X,CO, is reacted with an excess of hydrochloric acid. The equation is shown below. X,CO3(s) + 2HCl(aq) → 2XC1(aq) + Co,(g) + H,0(1) The reaction is carried out using this method: Step 1 Add 100 cm3 HC1(aq) to a conical flask and weigh. Step 2 Add X,CO, to the conical flask and immediately reweigh. Step 3 After 5 minutes, reweigh the conical flask and contents. Results Mass of conical flask + HCi(aq) 172.93 g Mass of conical flask + X,CO, + HCI(aq) before reaction 187.50 g Mass of conical flask + contents after 5 minutes 184.75g (i) Calculate the amount, in mol, of CO, released in the reaction.

The student is provided with the carbonate of an unknown metal, X,CO3. The student measures the mass loss when the X,CO, is reacted with an excess of hydrochloric acid. The equation is shown below. X,CO3(s) + 2HCl(aq) → 2XC1(aq) + Co,(g) + H,0(1) The reaction is carried out using this method: Step 1 Add 100 cm3 HC1(aq) to a conical flask and weigh. Step 2 Add X,CO, to the conical flask and immediately reweigh. Step 3 After 5 minutes, reweigh the conical flask and contents. Results Mass of conical flask + HCi(aq) 172.93 g Mass of conical flask + X,CO, + HCI(aq) before reaction 187.50 g Mass of conical flask + contents after 5 minutes 184.75g (i) Calculate the amount, in mol, of CO, released in the reaction.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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