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Chapter 9: Q. 9.62 (page 309)

A doctor orders 100mLof2.0%(m/v)ibuprofen. If you have 8.0%(m/v)ibuprofen on hand, how many milliliters do you need?

Short Answer

Expert verified

The volume of Ibuprofen is25mLis need when you have8.0%(m/v)ibuprofen.

Step by step solution

01

Given Information.

The following are the given information:

Mass per volume of ibuprofen is 2.0%(m/v)

To find the milliliters of Ibuprofen.

02

Find the Mass per Volume percent. 

Using the following, find the mass per volume percent,

Mass percent(m/v)=Solute massSolution volume脳100%

Mass per volume percent of Ibuprofen is2.0%(m/v)

03

Find the mass of Ibuprofen.

Volume of the solution is 100mL

Solute mass=Mass percent(m/v)脳Solution volume100%=2.0%脳100mL100%=2.0g

We know that,

Mass per volume of the solution is 8.0%(m/v)

Mass of Ibuprofen is2g

04

Find the volume of Ibuprofen.

Solution volume=Solute massMass percent(m/v)脳100%=2.0g8.0%脳100%=25mL

Therefore, the volume of Ibuprofen is 25mL

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Most popular questions from this chapter

Calculate the grams or milliliters of solute needed to prepare the following:

a.150gof a40.0%(m/m)LiNO3solution.

b. 450mLof a2.0%(m/v)KOHsolution.

c.225mLof a15%(v/v)isopropyl alcohol solution.

For each of the following solutions, calculate the:

a. grams of2.0%(m/m)NaClthat contains7.50gofNaCl.

b. milliliters of25%(m/v)NaFsolution that contains4.0gofNaF.

c. milliliters of8.0%(v/v)ethanol solution that contains20.0mLof ethanol.

Match the diagrams with the following: (9.1)

a. a polar solute and a polar solvent

b. a nonpolar solute and a polar solvent

c. a nonpolar solute and a nonpolar solvent

State whether each of the following refers to a saturated or an unsaturated solution:

a. A spoonful of salt added to boiling water dissolves.

b. A layer of sugar forms on the bottom of a glass of tea as ice is added.

c. A kidney stone of calcium phosphate forms in the kidneys when urine becomes concentrated.

What is the molarity of a solution containing 8.0gofNaOHin 400.mLofNaOHsolution? (9.4)
See all solutions

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