Yzed 3.725 g of an unknown mixture of NaCl, SiO2, and CaCO3. You isolated 1.108 g NaCl, 0.848 g SiO2, and 2.033 g CaCO3. Your TA later informs you that the original mixture was 25% NaCl, 25% SIO2, and 50% CaCO3- Choose a possible explanation for the discrepancy between your values and the actual percentages. O The CaCO3 was decanted into the SiO2 O NaCl was not completely dried before its mass was determined. D The SiO2 solution was cooled to room temperature and then weighed. O CaCl2 is a desiccant and therefore absorbed water before K2CO3 was added.

Yzed 3.725 g of an unknown mixture of NaCl, SiO2, and CaCO3. You isolated 1.108 g NaCl, 0.848 g SiO2, and 2.033 g CaCO3. Your TA later informs you that the original mixture was 25% NaCl, 25% SIO2, and 50% CaCO3- Choose a possible explanation for the discrepancy between your values and the actual percentages. O The CaCO3 was decanted into the SiO2 O NaCl was not completely dried before its mass was determined. D The SiO2 solution was cooled to room temperature and then weighed. O CaCl2 is a desiccant and therefore absorbed water before K2CO3 was added.

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...

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