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1: Topics in General Chemistry I
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1.1: Expressing Numbers - Significant Figures
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Significant figures properly report the number of measured and an estimated digit in a measurement. There are rules for applying significant figures in calculations.
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1.2: Expressing Numbers - Scientific Notation
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Scientific notation is a system for expressing very large or very small numbers as a simple number multiplied by 10 raised to a certain exponent, or power. Scientific notation expressed numbers using powers of 10.
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1.3: Converting Units-Dimensional Analysis
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The ability to convert from one unit to another is an important skill. A unit can be converted to another unit of the same type with a conversion factor.
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1.4: States of Matter - Solid, Liquid, and Gas
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Three states of matter exist: solid, liquid, and gas. Solids have a definite shape and volume. Liquids have a definite volume, but take the shape of the container. Gases have no definite shape or volume
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1.5: Energy
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When we speak of using energy, we are really referring to transferring energy from one place to another. Although energy is used in many kinds of different situations, all of these uses rely on energy being transferred in one of two ways. Energy can be transferred as heat or as work.
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1.6: Measurements and Units
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Chemists measure the properties of matter and express these measurements with a number and a unit. The basic units in the SI system of mass, length, temperature, time, and amount of substance are commonly used in chemistry.
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1.7: Temperature - Motion of Molecules and Atoms
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Three different scales are commonly used to measure temperature: Fahrenheit (°F), Celsius (°C), and Kelvin (K).
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1.8: Density and Specific Gravity
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Density is the ratio of the mass of an object to its volume. Specific gravity is the ratio of the density of a substance to the density of water.
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1.9: Dosage Calculations I
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Conversion factors are important in calculating dosages of medications administered to patients.
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1.10: Metric Prefixes
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Metric prefixes derive from Latin or Greek terms. The prefixes are used to make the units manageable. The SI system is based on multiples of ten.
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1.11: Dosage Calculations II
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Drug dosage calculation is required if the physician’s order is different from what is available. We will see examples where the medications are administered as fluids or tablets.
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1.12: End of Chapter Problems I
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This problem set is based on Chapter 1 topics.
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1.13: End of Chapter Problems II
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This problem set is based on simple one-step dosage calculations.
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1.14: End of Chapter Problems III
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This problem set is based on metric prefixes and multi-step dosage calculations.