What Is the [H₃O⁺] in a Buffer That Consists of 0.30

question 72

Multiple Choice

What is the [H₃O⁺] in a buffer that consists of 0.30 M HCOOH and 0.20 M HCOONa?
K_a = 1.7 $\times$ 10^-4

• A)1.1 \(\times\) 10^-4 M
• B)2.6 \(\times\) 10^-4 M
• C)4.3 \(\times\) 10^-4 M
• D)6.7 \(\times\) 10^-5 M
• E)None of these choices is correct.

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An accounting method used when identical or similar products are mass-produced, allocating costs based on process departments.

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A concept used in cost accounting to convert partially completed goods into the equivalent number of fully completed units.