Assay Master Interview Questions and Answers

When NaCl is added to nitric acid, a chemical reaction occurs.

• NaCl dissociates into Na+ and Cl- ions in water

• Nitric acid dissociates into H+ and NO3- ions in water

• The Cl- ions from NaCl react with H+ ions from nitric acid to form HCl gas

• The NO3- ions from nitric acid react with Na+ ions to form sodium nitrate (NaNO3)

• The overall reaction can be represented as: NaCl + HNO3 -> HCl + NaNO3

Sodium is a chemical element with the symbol Na and atomic number 11.

• Sodium is a highly reactive metal.

• It is a soft, silvery-white alkali metal.

• Sodium is commonly found in table salt (sodium chloride).

Leb relative work and process involves verifying the authenticity and quality of precious metals through testing and certification.

• Assay Master verifies the purity of precious metals through various testing methods.

• They issue certificates to confirm the authenticity and quality of the metals.

• The process involves meticulous testing and analysis to ensure accuracy.

• Examples of testing methods include fire assay, X-ray fluorescence, and spectrometry.