Domanda del libro di testo
(b) If you take a 10.0-mL portion of the stock solution and dilute it to a total volume of 0.500 L, what will be the concentration of the final solution?
1221
views
Ch.4 - Reactions in Aqueous Solution
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
Capitolo 4, Problema 75
medical lab is testing a new anticancer drug on cancer cells. The drug stock solution concentration is 1.5 * 10-9 M, and 1.00 mL of this solution will be delivered to a dish containing 2.0 * 105 cancer cells in 5.00 mL of aqueous fluid. What is the ratio of drug molecules to the number of cancer cells in the dish?
Guida verificata passo dopo passo1
Calculate the total volume of the solution in the dish by adding the volume of the drug solution to the volume of the aqueous fluid: 1.00 \(\text{ mL}\) + 5.00 \(\text{ mL}\).
Determine the concentration of the drug in the dish by using the dilution formula: C_1V_1 = C_2V_2, where C_1 is the initial concentration, V_1 is the initial volume, C_2 is the final concentration, and V_2 is the final volume.
Calculate the number of moles of the drug in the dish using the final concentration and the total volume of the solution in liters.
Convert the number of moles of the drug to the number of molecules using Avogadro's number (6.022 \(\times\) 10^{23} \(\text{ molecules/mol}\)).
Find the ratio of the number of drug molecules to the number of cancer cells by dividing the number of drug molecules by the number of cancer cells (2.0 \(\times\) 10^5).
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:
2mConcetti chiave
Ecco i concetti essenziali che devi comprendere per rispondere correttamente alla domanda.
Molarity
Molarity (M) is a measure of concentration defined as the number of moles of solute per liter of solution. In this context, the drug's concentration is given as 1.5 x 10^-9 M, indicating that there are 1.5 x 10^-9 moles of the drug in one liter of solution. Understanding molarity is essential for calculating the total amount of drug in a specific volume, which is crucial for determining the ratio of drug molecules to cancer cells.
Video consigliato:
Percorso guidato
01:13
Molarity
Avogadro's Number
Avogadro's number, approximately 6.022 x 10^23, is the number of particles (atoms, molecules, etc.) in one mole of a substance. This concept is vital for converting moles of the drug into actual molecules. By using Avogadro's number, we can determine how many drug molecules are present in the delivered volume, allowing us to compare this quantity to the number of cancer cells.
Video consigliato:
Percorso guidato
02:11Avogadro's Law
Dilution
Dilution refers to the process of reducing the concentration of a solute in a solution, typically by adding more solvent. In this scenario, the drug is delivered in a total volume of 5.00 mL, which affects the final concentration of the drug in the dish. Understanding dilution is important for accurately calculating the effective concentration of the drug when mixed with the aqueous fluid and determining the ratio of drug molecules to cancer cells.
Video consigliato:
Percorso guidato
00:58Dilution Equation
Pratica correlata
Domanda del libro di testo
Pure acetic acid, known as glacial acetic acid, is a liquid with a density of 1.049 g/mL at 25 C. Calculate the molarity of a solution of acetic acid made by dissolving 20.00 mL of glacial acetic acid at 25 C in enough water to make 250.0 mL of solution.
4577
views
2
rank
Domanda del libro di testo
(b) If you dilute 10.0 mL of the stock solution to a final volume of 0.250 L, what will be the concentration of the diluted solution?
1106
views
Domanda del libro di testo
(a) How many milliliters of a stock solution of 6.0 M HNO3 would you have to use to prepare 110 mL of 0.500 M HNO3?
1358
views
1
rank
Domanda del libro di testo
Calicheamicin gamma-1, C55H74IN3O21S4, is one of the most potent antibiotics known: one molecule kills one bacterial cell. Describe how you would (carefully!) prepare 25.00 mL of an aqueous calicheamicin gamma-1 solution that could kill 1.0 * 108 bacteria, starting from a 5.00 * 10-9M stock solution of the antibiotic.
841
views