Name:, 3) An increase in the wemperahure of a solution usually A) increases the

Question

Name:, 3) An increase in the wemperahure of a solution usually A) increases the bsiling psoint nnreases the solubibity of a gas in the solution the sohubihity of a solid solute in the solution D) deereases the solubility of a solid sohute in the solution 0 deeeases the solublity of a liquid sclute in the solution 4)The boiling punt of water at sea level is 100°CA' higher altitudes the boiling point of water A) lower because temperatures are lower B) lowee, because the atmospheric pressure is lower. C) higher, because the altitude is greater. D) highet, because there are fewer water molecules in the air E) the same because water always boils at 100 5) Vapor pressure can be described as A) the temperature at which bubbles of vapor appear in a liquid. B) the pressure exerted on the Earth by the particles in the air. C) the temperature at which the vapor pressure of a liquid equals atmospheric pressure D) the pressure exerted by a gas above the surface of its liquid. E) the pressure within the lungs during inhalation. Answer 6) An autoclave is used to sterilize surgical equipment because A) it allows water to boil at temperatures less than 100 C. B) it allows water to boil at 100 C at pressures less than 1 atm. C) it allows water to boil at 100 °C at pressures greater than 1 atm. D) it allows water to boil at temperatures above 100 C. E) it provides very high temperatures and very low pressures. Answer: 7) The total pressure in a mixture of gases is equal to the partial pressure(s) of A) the gas with the greatest number of moles. B) the gas with the smallest number of moles. C) the gas with the highest molecular weight. D) the gas that occupies the largest volume E) all the gases added together. Answer: 8) According to the Bronsted-Lowry definition A) an acid is a proton acceptor. B) a base produces Ht ions in aqueous solutions C) a base is a proton donos. D) a base is a proton acceptor. E) an acid acts as the solvent. Answer

Explanation / Answer

3) Answer C)

4) Answer B)

Boiling point is the temperature at which vapour pressure of liquid equals atmospheric pressure

At higher altitute atmospheric pressure decreasing

so , boiling point is lowering

5) Answer C)

6) Answer D)

Autoclave apply higher pressure , so boiling point of water increased and high temperature steam is obtained which is effective for sterilization

7) Answer E)

8) Answer D)

Example

NH3 + H+ ------> NH4+

so , Ammonia is a base

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