How many milliliters of the ethanol–water solution described in Example 14-1 should be diluted with water to produce 825 mL of 0.235 M CH₃CH₂OH?

Example 14-1

An ethanol–water solution is prepared by dissolving 10.00 mL of ethanol, CH₃CH₂OH (d = 0.789 g/mL), in a sufficient volume of water to produce 100.0 mL of a solution with a density of 0.982 g/mL(Fig. 14-1). What is the concentration of ethanol in this solution expressed as 

(a) Volume percent; 

(b) Mass percent; 

(c) Mass/volume percent; 

(d) Mole fraction; 

(e) Mole percent;

(f) Molarity; 

(g) Molality?

Figure 14-1

Transcribed Image Text:

Water 10.00 mL CH₂CH₂OH Volumetric flask 100.0 mL→ Ethanol-water solution: d = 0.982 g/mL