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mamaluj [8]
3 years ago
15

Which is true of a solute dissolved in a solvent? the solute raises the boiling point of the solvent. the solvent decreases the

conductivity of the solute. the solute raises the freezing point of the solvent?
Chemistry
1 answer:
Lina20 [59]3 years ago
6 0
When a solute is dissolved in a solvent the solute raises the boiling point of the solvent. The boiling point of a liquid (a solvent) will be higher when another compound (solute) is added, such that a solution has a higher boiling point than a pure solvent. This takes place when a non-volatile solute, such as a salt, is added to a pure solvent such as water.
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If you leave a glass of water and ice on the kitchen counter long enough, after a while you will have just a glass of water. why
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The elemental analysis of an organic solid extracted from gum arabic (a gummy substance used in adhesives, inks, and pharmaceuti
Evgesh-ka [11]

Answer:

The molar mass of the organic solid is 120.16 g/mol.

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Explanation:

Let the molecular mass of an organic solid be C_xH_yO_z

\Delta T_b=K_b\times m

Delta T_b=K_b\times \frac{\text{Mass of solid}}{\text{Molar mass of solid}\times \text{Mass of diphenyl  in Kg}}

where,

\Delta T_f =Elevation in boiling point = =1.5^oC

Mass of organic solid= 0.561 g

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K_b = boiling point constant = 8.00 °C/m

m = molality

Now put all the given values in this formula, we get

1.5^oC=8.00 ^oC/m\times \frac{0.561 g}{\text{Molar mass of solid}\times 0.0249 kg}

{\text{Molar mass of solid}}=120.16 g/mol

\%=\frac{\text{Number of atoms}\times \text{mass of an atom}}{\text{molas mass of compound}}\times 100

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40\%=\frac{x\times 12 g/mol}{120.16 g/mol}\times 100

x = 4.0

Percentage of hydrogen in an organic solid = 6.7%

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y = 8.0  

Percentage of hydrogen in an organic solid = 6.7%

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y = 4.0

The molecular formula of an organic solid is C_4H_8O_4

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3 years ago
Identify the name for the following compound: Al2O3
Vera_Pavlovna [14]

Answer:

Aluminium oxide (Al2O3)

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