Analytical Chemistry Quiz

What are SI units in chemistry?

• Systematic International d’Analysis

• Standardized International Units

• SystèmeInternational d’Unités

• Systematic International Units

What are significant figures a reflection of?

• Measurement's uncertainty

• Measurement's consistency

• Measurement's accuracy

• Measurement's precision

According to Rule 1, when are non-zero digits always significant?

• When they are rounded

• When they are estimated

• When they are measured

• When they are approximated

What is the unit for mass in analytical chemistry?

• Liters (L)

• Milliliters (mL)

• Kilograms (kg)

• Ounces (oz)

What does ppm stand for?

• Percentage per million

• Parts per milliliter

• Parts per million

• Percentage per milliliter

What does RSD stand for in statistical analysis?

• Relative Standard Deviation

• Relative Standard Distribution

• Relative Statistical Deviation

• Relative Statistical Distribution

What does the mean value represent in statistical analysis?

• Average value

• Minimum value

• Total value

• Maximum value

What does the standard deviation measure in a set of values?

• Central tendency

• Total value

• Variation or dispersion

• Mean value

What is the degree of freedom in the calculation of standard deviation?

• n / 2

• n x 2

• n + 1

• n - 1

What is the coefficient of variation (CV) also known as?

• Relative Mean Variation

• Relative Mean Deviation

• Relative Standard Deviation

• Relative Standard Variation