How many grams of sodium hydroxide are required to make 150 mLs of a 0.184 M solution?

Which of the principal characteristics of solutions can we see in the solutions of K2Cr2O7 shown in Figure 11.2?

Explain why solutions of HBr in benzene (a nonpolar solvent) are nonconductive, while solutions in water (a polar solvent) are conductive.

How much CaCl2 , in grams, is needed to make 2.0 L ofa 3.5M solution?

What mass of a 4.00% NaOH solution by mass contains 15.0 g of NaOH?

Arrange the following solutions in order by their decreasing freezing points: 0.1 m Na3PO4, 0.1 m C2H5OH, 0.01 m CO2, 0.151 m NaCI, and 0.21 m cacI2.

The following diagrams show varying amounts of the same solute (the red spheres) in varying amounts of solution. a. In which of the diagrams is the solution concentration the largest? b. In which two of the diagrams are the solution concentrations the same?

Rubbing alcohol contains 585 g isopropanol (C3H7OH) per liter (aqueous solution). Calculate the molarity.

6-49 A student has a stock solution of 30.0% w/v H2O2 (hydrogen peroxide). Describe how the student should prepare 250 mL of a 0.25% w/v H2O2 solution.

A 0.109 mol/kg aqueous solution of formic acid, HCOOH, freezes at −0.210 °C. Calculate the percent dissociation of formic acid.