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A solution is prepared by adding 6.24 g of benzene (C6H6, 78.11 g/mol)to 80.74 g of cyclohexane (C6H12, 84.16 g/mol).Calculate the mole fraction and molality of benzene in this solution.
Objective Test
A form of assessment with questions that have a single correct answer, minimizing subjectivity in grading.
Double-blind Test
An experimental procedure in which neither the participants nor the experimenters know who is receiving a particular treatment, to prevent bias in research results.
Single-blind Test
An experimental setup where the participants do not know which group (control or experimental) they belong to, but the researchers do.
Observational Study
A study in which a researcher carefully and systematically observes and records behavior without interfering with the behavior; it may involve either naturalistic or laboratory observation.
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