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10484581How do I solve questions 1 and 2?

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PROP0375: Separating the Components of a Ternary Mixture
45
section
date
Post-Laboratory Questions
(Use the spaces provided for the answers and additional paper if necessary.)
1. List possible manipulation errors that might contribute to the following errors in results:
(1) obtaining a significantly larger amount of NaCl than was present in the original sample;
(2) obtaining a significantly smaller amount of SiO2 than was present in the original sample.
2. Use the information in the table to answer the following questions.
Soluble in:
cold
hot
3M
3M
water
water
HC
NaOH
benzoic acid
no
yes
no
yes
Mg(OH) 2
no
no
yes
no
NazSO4
yes
yes
yes
yes
Zn(OH) 2
no
no
yes
yes
(1) Could you separate the components of a mixture of Mg(OH)2 and Zn(OH)2 by using 3M HCI?
Briefly explain your answer.
(2) Briefly describe how you could separate the components of a mixture of benzoic acid and
Na2SO4 and recover the two separated substances.
1989 Cengage Learning

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