A solution containing a solid where the rate of dissolution (duster) than the ra

Question

A solution containing a solid where the rate of dissolution (duster) than the rate of accusation is called an heterogeneous mixture. supers saturated solution. dilute solution. saturated solution. Choose the statement below that is false. The "broken interactions" refer to the Henry's Law constant of methyl bromide, CH_2 Br, is K_N = 0.159 mole/(L atm) at 25 degree C. For the gas above the solution, it has a mole fraction of 0.355 CH_3Br and a total pressure of 760. torr. What is the solubility of CH_3Br in water at this temperature? What mass (in g) of NH3 must be dissolved in 950 g of methanol to make a 0.500 m solution? 7) Determine the vapor pressure of a solution at 25 degree C that contains 76.6 g of glucose in 250.0 mL of water. The vapor pressure of pure water at this temperature is 23.8 torr! 70.8 torr 72.9 torr In the following elementary reaction, what is the rate expression? Determine the boiling point of a solution that contains 78.8 g of naphthalene (C_10H_8. molar mass = 128.16 g/mol) dissolved in 722 mL of benzene (d = 0.877 g/mL). Pure benzene has a boiling point of 80.1 degree C and has a k_b of 2.53 degree C/m. A solution of LiCI in water is 20.0 % LiCl my mass. What is the mole fraction (y) of LiCI?

Explanation / Answer

Q4.

dissolution is greated than recrystallization --> this means that solution is clearly "winning" over solid

so

this will remain in solution

options A and D are options

since

B --> hetero means at least 2 phases, so this is false, since no solid is forming

C --> supersaturated solutions have greater rates in solids than dissolution

E --> saturated solutions will have SAME rates

Then, note that it must not be dilute, in order to be accordance with this

so best fit for solution is A

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