Intellectual Olympiad in Physical-Chemical Analysis Methods Laboratory - 2026 ongoing

Subject: Physical-Chemical Analysis Methods Laboratory
Level: VII
Category: student
Quiz questions: in English
Example question: In an external-standard calibration, the regression equation is A = 0.250C + 0.010, where A is absorbance and C is concentration in mg/L. What concentration corresponds to an absorbance of 0.635? 2.30 mg/L, 2.50 mg/L, 2.70 mg/L, 2.90 mg/L