Analytical Chemistry Quiz

What are SI units in chemistry?

• Systematic International Units

• SystèmeInternational d’Unités

• Standardized International Units

• Systematic International d’Analysis

What are significant figures a reflection of?

• Measurement's uncertainty

• Measurement's consistency

• Measurement's accuracy

• Measurement's precision

According to Rule 1, which digits are always significant?

• Final zero digits

• Zero digits

• Trailing zero digits

• Non-zero digits

What is the measurement unit for mass in micrograms?

• g

• μg

• Kg

• mg

What is the measurement unit for volume in ounces?

• oz

• kg

• mL

• L

What is the concentration unit expressed in percentage?

• Mol/L

• Molarity

• Molality

• Percentage

What is the formula to convert Celsius to Kelvin?

• K = °C - 273.15

• °C = K + 273.15

• K = °C + 273.15

• °C = K - 273.15

What does parts per million (ppm) measure?

• Concentration of a gas

• Concentration of a solid

• Concentration of a solution

• Concentration of a liquid

What does IU stand for in pharmaceutical analysis?

• International Unit

• Internal Unit

• Intravenous Unit

• Inorganic Unit

What does accuracy express in pharmaceutical analysis?

• How well the analytical result matches the 'true value'

• How much variation or dispersion in a set of values

• How close the different measurements are

• How much the values in a dataset differ from the mean