Domanda del libro di testo
For each of the following processes, does the potential energy of the object(s) increase or decrease? (b) Water is pumped from ground level to the reservoir of a water tower 30 m above the ground.
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Ch.1 - Introduction: Matter, Energy, and Measurement
Brown15th EditionChemistry: The Central ScienceISBN: 9780137542970
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TOC.tableOfContents
- Ch.1 - Introduction: Matter, Energy, and Measurement146
- Ch.2 - Atoms, Molecules, and Ions200
- Ch.3 - Chemical Reactions and Reaction Stoichiometry176
- Ch.4 - Reactions in Aqueous Solution155
- Ch.5 - Thermochemistry126
- Ch.6 - Electronic Structure of Atoms131
- Ch.7 - Periodic Properties of the Elements126
- Ch.8 - Basic Concepts of Chemical Bonding123
- Ch.9 - Molecular Geometry and Bonding Theories143
- Ch.10 - Gases147
- Ch.11 - Liquids and Intermolecular Forces91
- Ch.12 - Solids and Modern Materials122
- Ch.13 - Properties of Solutions126
- Ch.14 - Chemical Kinetics174
- Ch.15 - Chemical Equilibrium101
- Ch.16 - Acid-Base Equilibria139
- Ch.17 - Additional Aspects of Aqueous Equilibria146
- Ch.18 - Chemistry of the Environment72
- Ch.19 - Chemical Thermodynamics129
- Ch.20 - Electrochemistry142
- Ch.21 - Nuclear Chemistry101
- Ch.22 - Chemistry of the Nonmetals68
- Ch.23 - Transition Metals and Coordination Chemistry66
- Ch.24 - The Chemistry of Life: Organic and Biological Chemistry10
Brown15th EditionChemistry: The Central ScienceISBN: 9780137542970Non è quello che usi tu?Cambia libro di testo
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Brown 15th EditionCh.1 - Introduction: Matter, Energy, and MeasurementProblema 34c
Brown 15th EditionCh.1 - Introduction: Matter, Energy, and MeasurementProblema 34cCapitolo 1, Problema 34c
Use appropriate metric prefixes to write the following measurements without use of exponents: c. 6.48×10-7 L
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Identify the appropriate metric prefix for the given exponent. In this case, the exponent is -7, which corresponds to the prefix 'nano' (n), where 1 nL = 10^{-9} L.
Convert the given measurement from liters to nanoliters. Since 1 nL = 10^{-9} L, you need to express 6.48 \(\times\) 10^{-7} L in terms of nanoliters.
To convert, divide the exponent of the given measurement by the exponent of the prefix. Here, you have 10^{-7} L and you want to convert to 10^{-9} L, so you divide -7 by -9.
Calculate the conversion factor: 10^{-7} L = 10^{2} nL, because -7 - (-9) = 2.
Multiply the original measurement by the conversion factor: 6.48 \(\times\) 10^{2} nL.
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Metric Prefixes
Metric prefixes are standardized terms used to denote specific powers of ten in the metric system. They simplify the representation of large or small quantities by providing a shorthand way to express these values. For example, 'nano-' represents 10^-9, while 'micro-' represents 10^-6, allowing for easier communication of measurements in scientific contexts.
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Percorso guidato
01:16
Metric Prefixes Usage
Scientific Notation
Scientific notation is a method of expressing numbers as a product of a coefficient and a power of ten. It is particularly useful for handling very large or very small numbers, as it condenses them into a more manageable form. In the case of 6.48×10^-7 L, the coefficient is 6.48, and the exponent indicates the decimal point's position, which can be converted to a metric prefix.
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Percorso guidato
02:50Standard Notation to Scientific Notation
Conversion to Standard Form
Converting a measurement from scientific notation to standard form involves rewriting the number without exponents. This process requires understanding how to shift the decimal point based on the exponent's value. For example, 6.48×10^-7 L becomes 0.000000648 L, which can also be expressed using the appropriate metric prefix, '648 nL' (nanoliters), for clarity and conciseness.
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01:56Conversion Factors
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