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Using mg CaCO₃/tab = [T] mg, compute mmol HCl/tab. (Report to 2 decimal places)

Unknown 3’s amide I band appears at 1645 cm⁻¹ instead of 1650 cm⁻¹ in the table. Best interpretation?

To analyze the calcium concentration in antacids using MP-AES, the sample is first dissolved in nitric acid, then transferred to a ________ flask before being analyzed.

The reaction between calcium carbonate and hydrochloric acid produces ________ (H₂CO₃), which decomposes to form water and carbon dioxide gas.

What is the first step when preparing the calcium sample for analysis?

The main reason standards and unknowns are prepared in the same %HNO₃ is to:

If your polypropylene reference spectrum is weak, the MOST likely procedural fix is:

“Carryover/memory effects” are best controlled by:

“Hot + stirred” is preferred over boiling during nitric digestions to reduce NOx risk and bumping.

Which statement best describes why MP-AES is appropriate for calcium determination in acid digests?