Domanda del libro di testo
Saline solution used in hospital contains 0.9% sodium chloride by mass. Calculate the number of grams of sodium chloride in 0.5 gal of saline solution if the solution has a density of 1.01 g/mL.
1172
views
Ch.1 - Introduction: Matter, Energy, and Measurement
Brown14th EditionChemistry: The Central ScienceISBN: 9780134414232
Non è quello che usi tu?Cambia libro di testoScegli un libro di testo diverso
TOC.tableOfContents
- Ch.1 - Introduction: Matter, Energy, and Measurement177
- Ch.2 - Atoms, Molecules, and Ions231
- Ch.3 - Chemical Reactions and Reaction Stoichiometry216
- Ch.4 - Reactions in Aqueous Solution189
- Ch.5 - Thermochemistry175
- Ch.6 - Electronic Structure of Atoms168
- Ch.7 - Periodic Properties of the Elements150
- Ch.8 - Basic Concepts of Chemical Bonding177
- Ch.9 - Molecular Geometry and Bonding Theories200
- Ch.10 - Gases179
- Ch.11 - Liquids and Intermolecular Forces113
- Ch.12 - Solids and Modern Materials154
- Ch.13 - Properties of Solutions157
- Ch.14 - Chemical Kinetics199
- Ch.15 - Chemical Equilibrium128
- Ch.16 - Acid-Base Equilibria164
- Ch.17 - Additional Aspects of Aqueous Equilibria163
- Ch.18 - Chemistry of the Environment105
- Ch.19 - Chemical Thermodynamics164
- Ch.20 - Electrochemistry171
- Ch.21 - Nuclear Chemistry122
- Ch.22 - Chemistry of the Nonmetals82
- Ch.23 - Transition Metals and Coordination Chemistry79
- Ch.24 - The Chemistry of Life: Organic and Biological Chemistry16
Brown14th EditionChemistry: The Central ScienceISBN: 9780134414232Non è quello che usi tu?Cambia libro di testo
Tutti i libri di testo
Brown 14th EditionCh.1 - Introduction: Matter, Energy, and MeasurementProblema 82
Brown 14th EditionCh.1 - Introduction: Matter, Energy, and MeasurementProblema 82Capitolo 1, Problema 82
A 32.65-g sample of a solid is placed in a flask. Toluene, in which the solid is insoluble, is added to the flask so that the total volume of solid and liquid together is 50.00 mL. The solid and toluene together weigh 58.58 g. The density of toluene at the temperature of the experiment is 0.864 g/mL. What is the density of the solid?
Guida verificata passo dopo passo1
Calculate the mass of the toluene by subtracting the mass of the solid from the total mass of the solid and toluene: \( m_{\text{toluene}} = 58.58 \text{ g} - 32.65 \text{ g} \).
Use the density formula \( \text{Density} = \frac{\text{Mass}}{\text{Volume}} \) to find the volume of the toluene: \( V_{\text{toluene}} = \frac{m_{\text{toluene}}}{0.864 \text{ g/mL}} \).
Determine the volume of the solid by subtracting the volume of the toluene from the total volume: \( V_{\text{solid}} = 50.00 \text{ mL} - V_{\text{toluene}} \).
Calculate the density of the solid using the formula \( \text{Density} = \frac{\text{Mass}}{\text{Volume}} \) with the mass of the solid and the volume of the solid: \( \text{Density}_{\text{solid}} = \frac{32.65 \text{ g}}{V_{\text{solid}}} \).
Ensure all units are consistent and check calculations for accuracy.
Risposta video verificata per un problema simile:
Questa soluzione video è stata consigliata dai nostri tutor come utile per risolvere questo problema.
Durata del video:
4mConcetti chiave
Ecco i concetti essenziali che devi comprendere per rispondere correttamente alla domanda.
Density
Density is defined as mass per unit volume, typically expressed in grams per milliliter (g/mL) or kilograms per cubic meter (kg/m³). It is a physical property that helps identify substances and can be calculated using the formula: density = mass/volume. Understanding density is crucial for solving problems involving mixtures and solutions, as it allows for the determination of how substances interact in a given volume.
Video consigliato:
Percorso guidato
01:56
Density Concepts
Mass and Volume Relationships
In chemistry, the relationship between mass and volume is fundamental for calculating densities and understanding how substances behave in mixtures. When a solid is added to a liquid, the total mass is the sum of the individual masses, while the total volume is the sum of the individual volumes. This relationship is essential for determining the density of the solid when it is mixed with a liquid, especially when the solid is insoluble.
Video consigliato:
Percorso guidato
01:09Relationship of Volume and Moles Example
Buoyancy and Insolubility
Buoyancy refers to the ability of an object to float in a fluid, which is influenced by the densities of both the object and the fluid. In this scenario, the solid is insoluble in toluene, meaning it does not dissolve and retains its own volume when mixed. This property is important for calculating the density of the solid, as it allows for the use of the total mass and volume of the system to isolate the solid's characteristics.
Video consigliato:
Percorso guidato
02:07Solubility and Insolubility
Pratica correlata
Domanda del libro di testo
A 40-lb container of peat moss measures 14 * 20 * 30 in. A
40-lb container of topsoil has a volume of 1.9 gal. (b) How many bags of peat moss are needed to
cover an area measuring 15.0 ft * 20.0 ft to a depth of 3.0 in.?
622
views
Domanda del libro di testo
Two spheres of equal volume are placed on the scales as shown. a. Which one is more dense?
407
views
Domanda del libro di testo
Water has a density of 0.997 g/cm3 at 25 °C; ice has a density of 0.917 g/cm3 at -10 °C. (a) If a soft-drink bottle whose volume is 1.50 L is completely filled with water and then frozen to -10 °C, what volume does the ice occupy? (b) Can the ice be contained within the bottle?
5303
views
1
rank