CHEM 103 LAB EXAM 3 QUESTIONS AND ANSWERS
CHEM 103 LAB EXAM 3 QUESTIONS AND ANSWERS Question 110 / 10 ptsScientific Calculator Answer the following two questions: 1. Why was H2SO4added to the metal carbonate in part 1 of lab 3? 2. Why were gloves used during the ninhydrin spray procedure? 1. H2SO4was added to the metal carbonate in lab 3 to cause the loss of CO2 2. Gloves were used during the ninhydrin spray procedure to prevent the reagent from reacting with the dead skin amino acids and causing purple marks on the skin. Question 210 / 10 ptsScientific Calculator A 1.1000 gram carbonate sample chosen from Li2CO3, K2CO3, Na2CO3and CaCO3was reacted with H2SO4and was found to lose 0.3497 gram of CO2.
Información del documento
- Subido en
- 16 de marzo de 2023
- Número de páginas
- 2
- Escrito en
- 2022/2023
- Tipo
- Examen
- Contiene
- Preguntas y respuestas