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2 years ago

The freezing point of a solution the freezing point of the pure solvent

Chemistry

2 answers:

nignag [31]2 years ago

6 0

Answer:

Freezing Point Depression. The freezing point of a solution is less than the freezing point of the pure solvent. This means that a solution must be cooled to a lower temperature than the pure solvent in order for freezing to occur

babymother [125]2 years ago

5 0

Answer:

This means that a solution must be cooled to a lower temperature than the pure solvent in order for freezing to occur.

Explanation:

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Aleksandr-060686 [28]

Same, I cannot answer the question. Try asking a high school student

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3 years ago

After he finished his work, Mendeleev predicted _____.

Alex17521 [72]

Answer:

the properties of three undiscovered elements is the correct answer.

Explanation:

After he completed his work Mendeleev predicted the properties of the undiscovered elements.

In the year 1871, Dmitri Mendeleev predicted the detailed existence and the properties of the three elements that are undiscovered and he gained tremendous fame.

He left the gap in the table to put the elements which are not identified at that time and by glancing at the physical and chemical properties of an element next to the gap, Mendeleev could predict the properties of the not discovered elements.

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3 years ago

How many Cl atoms are in Zn(ClO3)2? O A. 2 O B. 1 O c. 3 O D. 6

White raven [17]

The answer cl atoms are in zn(cio3)2 is A:2 because I looked it up and it gave me 2.

3 0

2 years ago

Suppose we have a 12.2 L sample containing 0.50 mol oxygen gas at a pressure of 1 atm and a temperature of 25 degrees celcius. I

snow_lady [41]

Answer:

c. 8.1 L

Explanation:

Given that:-

Moles of oxygen gas = 0.50 mol

According to the reaction shown below as:-

$3O_2\rightarrow 2O_3$

3 moles of oxygen gas on reaction gives 2 moles of ozone

Also,

1 mole of oxygen gas on reaction gives 2/3 moles of ozone

So,

0.50 mole of oxygen gas on reaction gives $\frac{2}{3}\times 0.50$ moles of ozone

Moles of ozone = 0.3333 mol

Pressure = 1 atm

Temperature = 25.0 °C

The conversion of T( °C) to T(K) is shown below:

T(K) = T( °C) + 273.15

So,

T = (25.0 + 273.15) K = 298.15 K

Volume = ?

Using ideal gas equation as:

PV=nRT

where,

P is the pressure

V is the volume

n is the number of moles

T is the temperature

R is Gas constant having value = 0.0821 L.atm/K.mol

Applying the equation as:

1 atm × V = 0.3333 mol × 0.0821 L.atm/K.mol × 298.15 K

⇒V = 8.1 L

6 0

2 years ago

How many moles of oxygen are in 1 mole of Fe(NO3)3?

goldfiish [28.3K]

There are 97.2 mol of O in 10.8 mol of Fe(NO3)3

7 0

2 years ago