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dezoksy [38]
1 year ago
11

which solute would you expect to most lower the freezing point of water? which solute would you expect to most lower the freezin

g point of water? all solutes lower the freezing point equally cacl2 sugar nacl
Chemistry
1 answer:
Orlov [11]1 year ago
7 0

CaCl_{2} is the substance that one would anticipate lowering water's freezing point the most.

This makes use of the freezing point depression theory. When dealing with this problem, we employ the equation shown below:

T = iKfm, which is rendered as follows in English:

Vant Hoff factor times molal freezing point depression constant * Solution molality equals the change in freezing point.

The quantity of molecules, not their composition, determines the freezing point depression because it is a colligative feature.

Now that we are certain that Kf and molality will remain constant, the Van't Hoff factor, also known as "i" is our sole remaining unknown.

The number of atoms that separate from each particular molecule is known as the Van't Hoff factor. The freezing point will be more depressed the greater the Van't Hoff factor.

NaCl will dissociate into Na+ and Cl-, therefore it has I = 2 CaCl2 will dissociate into Ca2+ and 2 Cl-, so it has I = 3. Sugar (C12H22O11) has I = 1.

Choice B is the appropriate response as a result.

To learn more about freezing point, refer:-

brainly.com/question/13380426

#SPJ4

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I think it is 110 mL but I’m not totally sure.
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Iron has a density of 7.9 space straight g divided by cm cubed. How much mass is in a 10 space cm cubed sample of iron? Question
dezoksy [38]

Answer:

79 g

Explanation:

Density (d) of iron = 7.9 g/cm³

Volume of the iron (V) = 10 cm³

Mass of the iron (m) = ?

Solution:

Formula will be used

                            d = m/V

As we have to find mass so rearrange the above equation

                              m = dV . . . . . . . . . . . (1)

Put values in above equation 1

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                         m = 79 g

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mass of iron = 79 g

6 0
3 years ago
The difference between diffusion and osmosis is that osmosis deals only with ________.
Nat2105 [25]
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Find the value of 6 +<br>6 +<br>6 + 16 + vo​
AVprozaik [17]

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6

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7 0
3 years ago
How many moles of sodium carbonate contain 1.773 × 1017 carbon atoms?
vesna_86 [32]

Answer:

  • 2.941 × 10⁻¹⁷ mol

Explanation:

1) Chemical formula of sodium carbonate: <em>Na₂CO₃</em>

2) Ratio of carbon atoms:

  • The number of atoms of C in the unit formula Na₂CO₃ is the subscript for the atom, which is 1 (since it is not written).

Hence, the ratio is 1 C atom / 1 Na₂CO₃ unit formula.

This is, there is 1 atom of carbon per each unit formula of sodium carbonate.

3) Calculate the number of moles in 1.773 × 10⁷ carbon atoms

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  • number C moles  = 1.773 × 10⁷ atoms / (6.022 × 10²³ atoms/mol)

  • number C moles = 2.941 × 10⁻¹⁷ mol

Since, the ratio is 1: 1, the number of moles of sodium carbonate is the same number of moles of carbon atoms.

5 0
3 years ago
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