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
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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.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F93479d9f-1aaa-44a2-8c7e-5a50ab1cdaa2%2Ffeda26a5-3b7b-47a9-baf6-822b933443e4%2Foops5yo_processed.jpeg&w=3840&q=75)
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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