There are 10 groups in your class. In the formulation of Concentrated Peppermint Water, you are assigned to prepare the 90% ethyl alcohol concentration from the stock solution of 95% ethyl alcohol. Upon calculating, you were able to determine that 756.9 mL of 95% ethyl alcohol is needed to prepare 800 ml of 90% ethyl alcohol. How much water must be added to prepare the total volume of 800 mL of 90% ethyl alcohol? 60.14 mL 42.10 mL 38.76 mL 51.03 mL

There are 10 groups in your class. In the formulation of Concentrated Peppermint Water, you are assigned to prepare the 90% ethyl alcohol concentration from the stock solution of 95% ethyl alcohol. Upon calculating, you were able to determine that 756.9 mL of 95% ethyl alcohol is needed to prepare 800 ml of 90% ethyl alcohol. How much water must be added to prepare the total volume of 800 mL of 90% ethyl alcohol? 60.14 mL 42.10 mL 38.76 mL 51.03 mL

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter19: The Chemistry Of The Main-group Elements

Section: Chapter Questions

Problem 65QRT

See similar textbooks

Similar questions

What mass of a 4.00% NaOH solution by mass contains 15.0 g of NaOH?
Fluoridation of city water supplies has been practiced in the United States for several decades. It is done by continuously adding sodium fluoride to water as it comes from a reservoir. Assume you live in a medium-sized city of 150,000 people and that 660 L (170 gal) of water is used per person per day. What mass of sodium fluoride (in kilograms) must be added to the water supply each year (365 days) to have the required fluoride concentration of 1 ppm (part per million)that is, 1 kilogram of fluoride per 1 million kilograms of water? (Sodium fluoride is 45.0% fluoride, and water has a density of 1.00 g/cm3.)
You want to prepare a 1.0 mol/kg solution of ethyleneglycol, C2H4(OH)2, in water. Calculate the mass of ethylene glycol you would need to mix with 950. g water.
What mass of HCl is contained in 45.0 mL of an aqueous HCl solution that has a density of 1.19 g cm-3 and contains 37.21% HCl by mass?
What mass of solid NaOH (97.0% NaOH by mass) is required to prepare 1.00 L of a 10.0% solution of NaOH by mass? The density of the 10.0% solution is 1.109 g/mL.
Mixtures of gases are always true solutions. True or false? Explain why.
What kinds of solute particles are present in a solution of an ionic compound? Of a molecular compound?
A solution is 0.1% by mass calcium chloride. Therefore, 100. g of the solution contains g of calcium chloride.