You Have Available the Following Reagents as 0

question 39

Multiple Choice

You have available the following reagents as 0.10 M aqueous solutions: NaOH,HCl,HCN (pK_a = 9.31) ,aniline (pK_b = 9.13) ,HNO₂ (pK_a = 3.25) ,and CH₃NH₂ (pK_b = 3.34) .Which two reagents would you use to make a buffer with a pH of 10.6?

• A)NaOH and HCN
• B)HCl and aniline
• C)HCl and CH₃NH₂
• D)NaOH and HNO₂

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Definitions:

Variable Overhead Efficiency Variance

A metric that assesses the difference between the actual hours worked and the standard hours expected, multiplied by the variable overhead rate.

Variable Overhead Efficiency Variance

is the difference between the actual variable overhead incurred and the standard cost allocated, based on the efficiency of utilizing resources.

Variable Overhead Efficiency Variance

The difference between the actual variable overhead and what the variable overhead costs should have been for the actual good units produced.

Materials Quantity Variance

The difference between the actual quantity of materials used in production and the expected amount, which can indicate efficiency or waste.