Chem 1000 Chapter 13 Solutions 1. Would the following liquids likely be miscible

Question

Chem 1000 Chapter 13 Solutions 1. Would the following liquids likely be miscible or immiscible? Why or why nor? a) CCl and H:0 b) acetic acid CH3C-O-H and H2O c) hexane, CaHe and toluene, CHs 2? The solubility of carbon dioxide is 0.348 gì 00 mL water at O?Cand 1.00 am. Under what pressure at 0 °C will the solubility of carbon dioxide be 1.25 g/100 mL water? 3, How many grams of ammonium nitrate must be weighed out to make 415 g of a 58.0% solution? In how many milliliters of water should it be dissolved? (density of water-1.00 g/mL) 4. 0.100 M sodium chloride is to be the source of 2.50 g of dissolved solute. What volume (in mL) of solution is needed?

Explanation / Answer

Ans 1 :

According to general solubility rule "Like dissolves like". So polar solutes are miscible in polar solvents , and non polar solvents solutes are miscible in non polar solvents.

So here :

a) CCl4 and H2O : Immiscible

CCl4 is non polar and water is polar , so they are not miscible.

b) acetic acid and H2O : miscible

Acetic acid and water are both polar compounds , and they form intermolecular hydrogen bonds too , so they are miscible.

c) Hexane and toluene : miscible

Both compounds are non polar , hence miscible in each other.

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