All categories

3 years ago

Which graph correctly shows the effect on the freezing point caused by increasing the molality of a solution ?

Chemistry

2 answers:

beks73 [17]3 years ago

6 0

The answer to your question is graph A :)

rodikova [14]3 years ago

6 0

Answer:

The first one among the four attached graphs correctly shows the effect on the freezing point caused by increasing the molality of a solution

Explanation:

According to colligative property of molecules- $\Delta T_{f}=k_{f}.m$

where $\Delta T_{f}$ is the depression in freezing point $(F_{p})$

$k_{f}$ is cryogenic constant of solvent and m is molality of solution

As $k_{f}$ is constant for a certain solvent therefore the above relation is similar to linear equation y=mx. here y represents $\Delta T_{f}$ and x represents m

So a graph between $\Delta T_{f}$ and m would give straight line passing through origin

If we extrapolate the first graph by joining all the points then it will give a straight line passing through origin.

Hence the first graph is the correct one depicting change in freezing point with molality

You might be interested in

Match each transition metal ion with its condensed ground-state electron configuration. A [Ar]3d2 B [Ar]4s23d3 C [Kr]4d10 D [Xe]

madreJ [45]

Answer:

$Mn^{2+}$ : - F . $[Ar]3d^{5}$

$Hg^{2+}$ : - G. $[Xe]4f^{14}5d^{10}$

$La^{3+}$ : - D. $[Xe]$

$Fe^{3+}$ : - F. $[Ar]3d^{5}$

$Ag^{+}$ : - C. $[Kr]4d^{10}$

$Co^{3+}$ : - E. $[Ar]3d^{6}$

Explanation:

The electronic configuration of the element Mn is:-

$[Ar]3d^{5}4s^2$

For, $Mn^{2+}$ , 2 electrons are lost, thus the configuration is:-

$[Ar]3d^{5}$

The electronic configuration of the element Hg is:-

$[Xe]4f^{14}5d^{10}6s^2$

For, $Hg^{2+}$ , 2 electrons are lost, thus the configuration is:-

$[Xe]4f^{14}5d^{10}$

The electronic configuration of the element La is:-

$[Xe]5d^{1}6s^2$

For, $La^{3+}$ , 3 electrons are lost, thus the configuration is:-

$[Xe]$

The electronic configuration of the element Fe is:-

$[Ar]3d^{6}4s^2$

For, $Fe^{3+}$ , 3 electrons are lost, thus the configuration is:-

$[Ar]3d^{5}$

The electronic configuration of the element Ag is:-

$[Kr]4d^{10}5s^1$

For, $Ag^{+}$ , 1 electron is lost, thus the configuration is:-

$[Kr]4d^{10}$

The electronic configuration of the element Co is:-

$[Ar]3d^{7}4s^2$

For, $Co^{3+}$ , 3 electrons are lost, thus the configuration is:-

$[Ar]3d^{6}$

7 0

3 years ago

Two opposing reaction (a + b c+D) occurring simultaneously

tekilochka [14]

Answer:

redox reaction

Explanation:

it's the only reaction occurs simultaneously, reduction and oxidation occur at the same time

5 0

3 years ago

A cross-country skier can complete a 7.5 km race in 45 min. What is the skier’s average speed? km/h

MariettaO [177]

10 km/h is the correct answer

3 0

3 years ago

Read 2 more answers

If 0.05 mol of I2 were actually produced in a reaction starting with 15 grams of CO what is the percent yield of I2

Andrew [12]

Answer:

6.2

Explanation:

<h2>I AM SMOooOooOooORT</h2><h2 /><h2>no but really trust the process</h2><h2 />

4 0

2 years ago

Select the definition that best describes a coenzyme. an inorganic ion that aids the biochemical function of a protein a molecul

Rasek [7]

Answer:

a inorganic ion that aids the biochemical function of a protein a molecule that has a catalytic biochemical function on a substrate an organic molecule that assists with a protein's catalytic function a molecule that is biochemically altered during a catalytic reaction

7 0

3 years ago