Chemistry: The mass of one mole of sulfur is

The mass of one mole of sulfur is - id15291014, gracerich

Hannahmiller3773

24.04.2023

The order of increasing freezing points is NH_4I

Explanation:

The expression of depression in freezing point is given as:

$\Delta T_f=i\times k_f\times m$

where,

$\Delta T_f$ = Depression in freezing point

i = Van't Hoff factor

k_f = freezing point constant

m = molality

Let the molarity of the given solutions is '1 m'

For the given options:

Option 1: 1 m CoCl_3

Value of i = 4

So, molal concentration will be = $(1\times 4)=4m$

Option 2: 1 m K_2CO_3

Value of i = 3

So, molal concentration will be = $(1\times 3)=3m$

Option 3: 1 m NH_4I

Value of i = 2

So, molal concentration will be = $(1\times 2)=2m$

As, the molal concentration of CoCl_3 is the highest, so its freezing point will be the highest.

Hence, the order of increasing freezing points follows:

NH_4I

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