A. Test for Physlcal State (cite your references) Characterlstics Tube 1- 10 drops of Tube 2 - 10 drops of benzene toluene/xylene Physlcal state Color Odor Solublity In water Density In water
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- (a) Read the following burette and graduated cylinder and record your answer in the spaces provided below. -30 6 -20 7 -10 (i) Burette reading: (ii) Graduated cylinder reading: (iii) What is the name of the level of the liquid in the burette which we read? (iv) Water is a solvent. Therefore, it dissolves compounds and compounds. The H-O-H angle of water is (v) When ammonia is mixed with water, it and produces ions which make the solution basic. (vi) Water exists in three , namely solid, liquid and gas. As a solid, water is called and as a gas water is called (vii) The for H20(g) and H2O(t) are -241.85 kJ/mol and -285.85 kJ/mol, respectively. Therefore, the of water is +44.00 kJ/mol. 1 (b) An unknown mass of Na3PO4(s) is dissolved in water to form 50.00 mL of solution. This is Solution A. Then 10.00 mL of Solution A is diluted with water to 50.00 mL. The final solution is Solution B. 20.00 mL of Solution B contains 4.408 x 1020 sodium ions. (NA = 6.022 x 1023 mol-1) Calculate the mass…How T Enboar nType=1&ElementID313663939 Gift Bo... its HELP k Microsoft Word -.. osha website help its Regula N-up and reports 360° reports More ot.doc Henry's and Percent v 2. If a gas has a solubility of .55 g/L at 2.0 atm, how much will dissolve at 12.6 atm?Solubility- hexachlorobenzene Q1)Using the Lewis structures of the molecule and water, identify and label areas of intermolecular attraction. ▪More than one water molecule should be shown ▪Label the type of IM forces present b)Using the Lewis structures of the molecule and a nonpolar solvent (e.g., hexane), identify and label areas of intermolecular attraction. c)explain the solubility (or lack thereof) of your molecule in water. When available, use solubility data (at the same temperature) to support your explanation. d)explain the solubility (or lack thereof) of your molecule in nonpolar solvents. When available, use solubility data (at the same temperature) to support your explanation. e)when dissolved in water, qualitatively discuss whether the molecule is a strong electrolyte, weak electrolyte, or nonelectrolyte. Please answer very soon will give rating surely All questions answers needed
- (a)The pure liquid with the lowervapor pressure at room temperature has the ______ boiling point.What is the microscopic explanation for the macroscopic behaviour illustrated in Figure 11.15?Consider this information regarding two compounds. Thallium azide: yellow crystalline solid; melting point = 330 C; slightly soluble in water, more soluble in hot water; insoluble in ethanol or diethyl ether. Camphene: colorless, cubic crystals; melting point = 51 C; boiling point = 159 C; insoluble in water; moderately soluble in ethanol; soluble in diethyl ether. (a) Is camphene an ionic or molecular compound? Explain your answer. (b) Is thallium azide an ionic or molecular compound? Explain your answer.
- Miscible liquids from homogeneous mixture when added together. is Toluene miscible with water?, or With ethyl alcohol?Acetone is soluble in water and its solubility does not change much with a change in temperature. Which of the PEC diagrams below best illustrates this observations? (M: Mixed State, UM: Unmixed State) Acetone Ep Ep Ep UM UM M M. UM UM M. # configurations # configurations # configurations # configurations b)A. Volatility Results Summary: Rank the substances in order of decreasing volatility. (1 being most volatile to 3 being lease volatile) Water, Methanol, or Acetone 1 2 3
- 4 ounces of 80 proof liquor is equilvaent to how many standard drinks?Dynamic equilibrium can be defined as O rate of dissolution rate of dissolving rate of condensing > rate of bubbling rate of dissolution = rate of recrystallization. rate of dissolution > rate of recrystallization.Organic liquids are usually less dense than water. True False