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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 for Engineering Students
Chemistry for Engineering Students
4th Edition
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Lawrence S. Brown, Tom Holme
Chapter5: Gases
Section: Chapter Questions
Problem 5.62PAE: 62 Ammonium dinitramide (ADN), NH4N(NO2)2, was considered as a possible replacement for aluminium...
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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) + 2HCI(aq) 2XC((aq) + CO2(9) + H,O(1) The reaction is carried out using this method: Step 1 Add 100 cm3 HC(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 + HC((aq) 172.93g 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.
Transcribed Image Text: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) + 2HCI(aq) 2XC((aq) + CO2(9) + H,O(1) The reaction is carried out using this method: Step 1 Add 100 cm3 HC(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 + HC((aq) 172.93g 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.
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