A 4.076 g sample of powder contains LiHCO3 and an unknown amount of unreactive salt. When it is decomposed it weighed 2.580 g. Calculate the % LiHCO3 in the unknown powder. 2 LIHCO3 (s) → Li₂CO3 (s)+ H₂CO3 (g) 4
A 4.076 g sample of powder contains LiHCO3 and an unknown amount of unreactive salt. When it is decomposed it weighed 2.580 g. Calculate the % LiHCO3 in the unknown powder. 2 LIHCO3 (s) → Li₂CO3 (s)+ H₂CO3 (g) 4
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...
Related questions
Question
![**Laboratory Exercise: Determining the Percentage of LiHCO₃ in a Sample**
**Objective:**
To calculate the percentage of lithium hydrogen carbonate (LiHCO₃) in a powder sample containing LiHCO₃ and an unknown amount of unreactive salt.
**Experimental Details:**
- A sample of powder weighing 4.076 grams is analyzed.
- The sample contains LiHCO₃ and an unreactive salt.
- Upon decomposition, the sample weighs 2.580 grams.
**Chemical Reaction:**
\[ 2 \text{LiHCO}_3 \, (s) \rightarrow \text{Li}_2\text{CO}_3 \, (s) + \text{H}_2\text{CO}_3 \, (g) \]
**Instructions:**
1. Determine the mass loss upon decomposition, which corresponds to the release of gas.
2. Calculate the percentage of LiHCO₃ in the sample based on the mass before and after decomposition.
**Source:**
Basic Chemistry Laboratory Manual, Page 79](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ffa8b297b-18e7-4364-8bed-f8cd9104be03%2Fb54d0afd-78e6-4908-b8f1-c56b0c942e1b%2Fxtab8zm_processed.jpeg&w=3840&q=75)
Transcribed Image Text:**Laboratory Exercise: Determining the Percentage of LiHCO₃ in a Sample**
**Objective:**
To calculate the percentage of lithium hydrogen carbonate (LiHCO₃) in a powder sample containing LiHCO₃ and an unknown amount of unreactive salt.
**Experimental Details:**
- A sample of powder weighing 4.076 grams is analyzed.
- The sample contains LiHCO₃ and an unreactive salt.
- Upon decomposition, the sample weighs 2.580 grams.
**Chemical Reaction:**
\[ 2 \text{LiHCO}_3 \, (s) \rightarrow \text{Li}_2\text{CO}_3 \, (s) + \text{H}_2\text{CO}_3 \, (g) \]
**Instructions:**
1. Determine the mass loss upon decomposition, which corresponds to the release of gas.
2. Calculate the percentage of LiHCO₃ in the sample based on the mass before and after decomposition.
**Source:**
Basic Chemistry Laboratory Manual, Page 79
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 5 steps with 7 images
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Recommended textbooks for you
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY