Answer:
Hi
Explanation:
The energy needed to break the required bonds is greater than the energy released when the new bonds form.
Bonds that have been formed during specific reactions require much energy to be broken down again because of the closed atomic bond that have formed
The mole fraction of the non-volatile solute in the solution is 0.13.
<h3>Mole fraction of solute </h3>
Using law of vapor pressure formula
Mole fraction of the non-volatile solute=Vapor pressure of the pure acetone-Vapor pressure of the solution /Vapor pressure of the pure acetone
Where:
Vapor pressure of the pure solvent (acetone) =266 torr
Vapor pressure of the solution =232torr
Mole fraction of solute = ?
Let plug in the formula
Mole fraction of the non-volatile solute=266-232/266
Mole fraction of the non-volatile solute=34/266
Mole fraction of the non-volatile solute=0.127
Mole fraction of the non-volatile solute=0.13 (Approximately)
Inconclusion the mole fraction of the non-volatile solute in the solution is 0.13.
Learn more about mole fraction of the non-volatile solute here: brainly.com/question/14114576
An example of 17.3 subtracting polynomial expressions question is solve for 2q² - q - 8) - (2 q² + q - 4).
<h3>What is polynomial expressions?</h3>
A polynomial is known to be a type of an expression that is made up of variables, constants and exponents. They are often combined using the mathematical terms such as addition, subtraction, etc.
2 q² - q - 8) - (2 q² + q - 4)
= (2 q² - q - 8) + (-2 q² - q + 4)
Then you have to rewrite subtraction as addition and then Group like terms together;
= (2 q² - 2 q²) + (-q - q) + (-8 + 4)
= -2q - 4
Learn more about polynomial from
brainly.com/question/2833285
Answer:
0.9 gram is H2 molecule.....