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Lead is a toxic metal that affects the central nervous system. A Pb-contaminated water sample contains 0.0011% Pb by mass. How much of the water (in mL) contains 150 mg of Pb? (Assume a density of 1.0 g/mL.)
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Ch.14 - Solutions
Tro5th EditionChemistry: A Molecular ApproachISBN: 9780134874371
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TOC.tableOfContents
- Ch.1 - Matter, Measurement & Problem Solving117
- Ch.2 - Atoms & Elements106
- Ch.3 - Molecules and Compounds128
- Ch.4 - Chemical Reactions and Chemical Quantities56
- Ch.5 - Introduction to Solutions and Aqueous Solutions84
- Ch.6 - Gases112
- Ch.7 - Thermochemistry96
- Ch.8 - The Quantum-Mechanical Model of the Atom60
- Ch.9 - Periodic Properties of the Elements86
- Ch.10 - Chemical Bonding I: The Lewis Model91
- Ch.11 - Chemical Bonding II: Molecular Shapes, VSEPR & MO Theory85
- Ch.12 - Liquids, Solids & Intermolecular Forces51
- Ch.13 - Solids & Modern Materials48
- Ch.14 - Solutions93
- Ch.15 - Chemical Kinetics114
- Ch.16 - Chemical Equilibrium68
- Ch.17 - Acids and Bases137
- Ch.18 - Aqueous Ionic Equilibrium154
- Ch.19 - Free Energy & Thermodynamics91
- Ch.20 - Electrochemistry105
- Ch.21 - Radioactivity & Nuclear Chemistry74
- Ch.22 - Organic Chemistry141
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Capitolo 14, Problema 55
Silver nitrate solutions are often used to plate silver onto other metals. What is the maximum amount of silver (in grams) that can be plated out of 4.8 L of an AgNO3 solution containing 3.4% Ag by mass? Assume that the density of the solution is 1.01 g/mL.
Guida verificata passo dopo passo1
Step 1: First, we need to calculate the total mass of the solution. We can do this by multiplying the volume of the solution by its density. In this case, we have a volume of 4.8 L (which is equivalent to 4800 mL) and a density of 1.01 g/mL. So, the total mass of the solution is 4800 mL * 1.01 g/mL.
Step 2: Next, we need to find the mass of Ag in the solution. We know that the solution contains 3.4% Ag by mass. This means that for every 100 g of solution, there are 3.4 g of Ag. So, we can calculate the mass of Ag in the solution by multiplying the total mass of the solution by 3.4% (or 0.034).
Step 3: The result from step 2 will give us the mass of Ag in grams. This is the maximum amount of silver that can be plated out of the solution.
Step 4: Remember to check your units and make sure they are consistent throughout the problem. In this case, we started with volume in liters, converted it to milliliters, and then used the density to find the mass in grams.
Step 5: Finally, always review your work to ensure that it makes sense. The mass of Ag should be a reasonable value given the volume and concentration of the solution.
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Concentration and Mass Percent
Mass percent is a way of expressing the concentration of a solute in a solution, calculated as the mass of the solute divided by the total mass of the solution, multiplied by 100. In this case, a 3.4% Ag by mass means that in every 100 grams of the solution, there are 3.4 grams of silver. Understanding this concept is crucial for determining the amount of silver present in the given volume of solution.
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Percorso guidato
00:38
Mass Percent Calculation
Volume to Mass Conversion
To find the mass of a solution from its volume, the density of the solution is used. Density is defined as mass per unit volume, and in this scenario, the density of the AgNO3 solution is given as 1.01 g/mL. By multiplying the volume of the solution (in mL) by its density, one can calculate the total mass of the solution, which is necessary for further calculations regarding the amount of silver.
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04:12Energy to Mass Conversion
Stoichiometry in Chemical Reactions
Stoichiometry involves the calculation of reactants and products in chemical reactions based on the conservation of mass. In this context, it helps determine how much silver can be plated from the silver nitrate solution. By knowing the mass of silver in the solution, one can apply stoichiometric principles to find the maximum amount of silver that can be deposited onto another metal.
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01:16Stoichiometry Concept
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