Textbook Question
An aqueous KNO3 solution is made using 72.5 g of KNO3 diluted to a total solution volume of 2.00 L. Calculate the molality of the solution. (Assume a density of 1.05 g/mL for the solution.)
1830
views
Ch.13 - Solutions
Chapter 13, Problem 54
To what volume should you dilute 125 mL of an 8.00 M CuCl2 solution so that 50.0 mL of the diluted solution contains 4.67 g of CuCl2?
Verified step by step guidance1
Calculate the moles of CuCl2 in 50.0 mL of the diluted solution using the given mass (4.67 g) and the molar mass of CuCl2.
Determine the molarity of the diluted solution by dividing the moles of CuCl2 by the volume of the diluted solution in liters (50.0 mL converted to liters).
Use the dilution equation, M1V1 = M2V2, where M1 and V1 are the initial molarity and volume, and M2 and V2 are the molarity and volume of the diluted solution, respectively.
Substitute the known values into the dilution equation: M1 = 8.00 M, V1 = 125 mL, and M2 is the molarity calculated in step 2.
Solve for V2, the total volume of the diluted solution, ensuring that all volumes are in the same units (liters or milliliters).
Related Practice
Textbook Question
An aqueous KNO3 solution is made using 72.5 g of KNO3 diluted to a total solution volume of 2.00 L. Calculate the mass percent of the solution. (Assume a density of 1.05 g/mL for the solution.)
365
views
Textbook Question
To what volume should you dilute 50.0 mL of a 5.00 M KI solution so that 25.0 mL of the diluted solution contains 3.05 g of KI?
4458
views
Textbook Question
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.
1989
views
Textbook Question
A dioxin-contaminated water source contains 0.085% dioxin by mass. How much dioxin is present in 2.5 L of this water? Assume a density of 1.00 g/mL.
2095
views
2
rank
Open Question
A hard water sample contains 0.0085% Ca by mass (in the form of Ca2+ ions). How much water (in grams) contains 1.2 g of Ca? (1.2 g of Ca is the recommended daily allowance of calcium for adults between 19 and 24 years old.)