Mass and Volume: Units, Prefixes, and Relationships
Explore the concepts of mass and volume in relation to units of measure, SI prefixes, and their interconnections. Learn about the relationship between mass/weight and volume in various substances. Useful for bio, chem, and pharm students.
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Units and prefixes: mass and volume www.kent.ac.uk/student-learning-advisory-service
Mass and volume Mass and volume Introduction Units of measure SI prefixes Relationship between mass/weight and volume Bio/chem/pharm students
Units of measure Units of measure Mass kilogram Length metre Volume litre 1000g kg SI unit 1000mm m SI unit 1000mL L non-SI unit
Prefixes Prefixes 106 103 102 101 100 10-1 10-2 10-3 10-6 10-9 10-12 mega (M) kilo (k) hecto (h) deca (da) base unit deci (d) centi (c) milli (m) micro (mc, ) nano (n) pico(p) 1,000,000 1,000 100 10 1 0.1 0.01 0.001 0.000,001 0.000,000,001 0.000,000,000,001 avoid in medicinal contexts avoid in medicinal contexts
Relationships Relationships Length to volume 0.1m X 0.1m X 0.1m (1000cm3) = 1 litre 10cm Specific gravity Specific gravity substance H20 1L Volume to mass 1 litre (of SG 1.0) = 1kg 1mL (of SG 1.0) = 1g (1000mL) 10cm i.e., mg i.e., mg mL mg = mg = mcL mL mcL NB: different NB: different prefixes prefixes
Relationships Relationships 1). The weight of 100mL of H2O @ 4 C a). 10g b). 100g c). 1kg 2). The Weight of 2.5L of isopropyl alcohol (SG 0.8) a). 3.125kg b). 2kg c). 1.8kg 3). The volume of 200g of ethylene glycol (SG 1.1) a). 182mL b). 200mL c). 220mL
Mass and volume Mass and volume Units of measure SI prefixes Relationship between mass/weight and volume
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