Question
An impure sample of CaC2O4 . H2O is analyzed using TGA technique. TG curve of the sample indicates the total mass change from 85 mg to 30.7 mg when this sample was heated up to 1173 K. calculate the purity of the sample.
Answer :
Word Count : 351
Let's calculate the purity of the sample based on the given data. ### Given: - Initial mass of the sample: \( m_0 = 85 \, \text{mg} \) - Final mass of the sample: \( m_f = 30.7 \, \text{mg} \) - Mass loss: \( \Delta m = m_0 - m_f = 85 \, \text{mg} - 30.7 \, \text{mg} = 54.3 \, \text{mg} \) - Decomposition reaction of calcium oxalate monohydrate (\( \text{CaC}_2\text{O}_4 \cdot \text{H}_2\text{O} \)) is: \[ \text{CaC}_2\text{O}_4 \cdot \text{H}_2\text{O} \rightarrow \text{CaO} + 2 \text{CO}_2 + \text{H}_2\text{O} ____ ________ __________ __________ __________ ___.
____ _____ ___ _______ _____ ________ ____ _____ ____ _______ _______.
______ __________ __________ ________ _____.
_________ ____ __________ ______ ___.
_______ ___ _________ ________ ___ ____ ____ ______ ____.
_______ __________ ______ _______ __________ ________ _____ _________ _________ ______.
________ __________ _____ ____ _______ ______ _________ ______ ____ _________ __________ __________.
___ __________ ____ ___ ______ ___ __________ _____ ____ ______ _____ ____.
____ ___ ___ _____ __________ __________.
_____ ____ ____ __________ _____ ________.
______ __________ ______ _________ __________ ___ _____ ____ ________.
_________ ____ _________ ___ ________ _____ __________ _______ _________ ___ _______ _____.
_________ ___ __________ ________ ____ ___ _______ __________ ________ _______ _________.
_______ ________ _____ _____ ______ _______ _______ _________.
__________ ________ ________ ____ __________ _______.
________ ________ ___ _______ ______ _________ ______ ____ ____.
____ ____ ____ _______ _____ _____ _________ ____ __________.
_______ ______ ______ __________ ________.
_______ ___ ______ ____ ____ _____ ______ ________ _____ _____.
_______ _______ ________ ________ _________.
________ ____ _____ _______ ____ ______.
_________ ___ __________ _________ _________ _______ _________.
__________ __________ __________ ___ ____.
______ ____ ________ ____ ______ _________ _____ ____ ___ ______ ________ __________.
_________ ___ ___ ____ ___ __________.
_____ ________ ________ __________ __________ ______ ___ _____ __________.
__________ ______ ____ _________ ________ ___ _____ ________ _________ ______ __________.
______ ________ ______ ________ ___.
__________ _________ ____ _______ _______ ____ __________ ____ _____.
______ ____ ______ _____ __________ _________ ________ ________ _____ ______ ___.
______ ______ _________ __________ ____.
________ ______ _________ ________ ____ _____ _______ _______ __________.
___ __________ ______.
Get Full Answer on WhatsApp
Let's calculate the purity of the sample based on the given data. ### Given: - Initial mass of the sample: \( m_0 = 85 \, \text{mg} \) - Final mass of the sample: \( m_f = 30.7 \, \text{mg} \) - Mass loss: \( \Delta m = m_0 - m_f = 85 \, \text{mg} - 30.7 \, \text{mg} = 54.3 \, \text{mg} \) - Decomposition reaction of calcium oxalate monohydrate (\( \text{CaC}_2\text{O}_4 \cdot \text{H}_2\text{O} \)) is: \[ \text{CaC}_2\text{O}_4 \cdot \text{H}_2\text{O} \rightarrow \text{CaO} + 2 \text{CO}_2 + \text{H}_2\text{O} ____ ________ __________ __________ __________ ___.
____ _____ ___ _______ _____ ________ ____ _____ ____ _______ _______.
______ __________ __________ ________ _____.
_________ ____ __________ ______ ___.
_______ ___ _________ ________ ___ ____ ____ ______ ____.
_______ __________ ______ _______ __________ ________ _____ _________ _________ ______.
________ __________ _____ ____ _______ ______ _________ ______ ____ _________ __________ __________.
___ __________ ____ ___ ______ ___ __________ _____ ____ ______ _____ ____.
____ ___ ___ _____ __________ __________.
_____ ____ ____ __________ _____ ________.
______ __________ ______ _________ __________ ___ _____ ____ ________.
_________ ____ _________ ___ ________ _____ __________ _______ _________ ___ _______ _____.
_________ ___ __________ ________ ____ ___ _______ __________ ________ _______ _________.
_______ ________ _____ _____ ______ _______ _______ _________.
__________ ________ ________ ____ __________ _______.
________ ________ ___ _______ ______ _________ ______ ____ ____.
____ ____ ____ _______ _____ _____ _________ ____ __________.
_______ ______ ______ __________ ________.
_______ ___ ______ ____ ____ _____ ______ ________ _____ _____.
_______ _______ ________ ________ _________.
________ ____ _____ _______ ____ ______.
_________ ___ __________ _________ _________ _______ _________.
__________ __________ __________ ___ ____.
______ ____ ________ ____ ______ _________ _____ ____ ___ ______ ________ __________.
_________ ___ ___ ____ ___ __________.
_____ ________ ________ __________ __________ ______ ___ _____ __________.
__________ ______ ____ _________ ________ ___ _____ ________ _________ ______ __________.
______ ________ ______ ________ ___.
__________ _________ ____ _______ _______ ____ __________ ____ _____.
______ ____ ______ _____ __________ _________ ________ ________ _____ ______ ___.
______ ______ _________ __________ ____.
________ ______ _________ ________ ____ _____ _______ _______ __________.
___ __________ ______.
Get Full Answer on WhatsApp
IGNOU NEWS
Assignment Submission Last Date Extended Till 30 June 2026 Click Here★★★IGNOU June 2026 TEE Date Sheet Released Click Here★★★