dw 5. Both oxygen atoms in acetic acid (CH3CO₂H) are capable of hydrogen bonding, a feature that ydrogen contributes greatly to the high boiling point of pure acetic acid. In water This also acetic acid vondj molecules hydrogen bond with water molecules, a factor which increases the solubility of dottelt acetic acid in water. Depict all possible hydrogen bonds between water molecules and each oxygen of a molecule of acetic acid. Use a dotted line to highlight each hydrogen bond. Which atom on a water molecule will be attracted to an oxygen atom on acetic acid? Why? Tiros HIC-H Н Ö: H-C-C Q-H Lab Notes Embed a copy of your lab notes for this experiment at the end of your report.

Please explain and solve very correctly

2 pt Please provide an explanation for the relatively high boiling points of H20, HF, and NH3 in comparison to the hydrogen compounds of other elements in the respective groups. 100 H2O Group 16 (6A) HF Group 17 (7A) H,Te SbH3 H,Se HI NH3 Group 15 (5A) H.S ASH5 SnH4 HCI HBr PH, GeH, -100 SiH CH Group 14 (4A) -200 1 3. 4 Period HTML Editor B IUA 工E三州 星xx 三= A 12pt Paragraph Boiling point ('C)

3. Maximum solubility of an ionic compounds in water depend on different sets of conditions. Out of five sets of conditions (given below), which one is the best for getting maximum solubility? A. The magnitude of the lattice energy should be large, and the enthalpy of hydration of the ions should be large. B. The enthalpy of hydration (Delta H) of the cation should be equal to the enthalpy of hydration of the anion, regardless of the magnitude of the lattice energy C. The magnitude of the lattice energy should be small, and the enthalpy of hydration of the ions should be small.   D. The magnitude of the lattice energy should be small, and the enthalpy of hydration of the ions should be large. E. The magnitude of the lattice energy should be large, and the enthalpy of hydration of the ions should be small.

Acetic acid (CH3CO₂H) dissolved in water is shown to the right. Which of the labeled interactions represent hydrogen bonding interactions? H I 0: Oll only H OI only O III only I, III, and IV I and III O I and IV III and IV 4. HICH III 0: -C- &mm. :O: II -H H ||||.* H IV H

A water sample is to be treated using alum as Al2(SO4)3●14.2 H2O. The water has the following constituents:   mg/L Ca2+ 37 Na+ 6.5 Mg2+ 8.1 K+ 1.2 Fe3+ 1.0 HCO3- 119 SO42- 22 Cl- 20 NO3- 0.1 Is the water analysis complete according to the principle of electroneutrality?

please just do part b

Calculate the Molar mass of a volatile liquid (g/mol) from the following data:- Mass of dry flask, foil, and rubber band (g) = 142.722 Temperature of boiling water (°C) = 99.9 Mass of dry flask, foil, rubber band, and vapors (g) = 143.801 Volume of Erlenmeyer flask (Litres) = 1.127 Atmospheric Pressure (atm) = 1 7.8 g/mol OA. 19.3 g/mol O B. 24.3 g/mol С. OD 29.3 g/mol 34.3 g/mol OE.

The amount of UVA radiation hitting a surface at sea level in a lightly clouded day isabout 70W/m2. About half of that can be absorbed by the skin. A typical carbon-carbon bond requires 348 kJ/mol to break. A person lies on the beach for about 1hour without sunscreen (i.e. fully exposed to UVA radiation). Estimate the numberof C-C bonds broken in this person’s back (about 0.18 m2) over that period. Assumethat the average wavelength of UVA is 335 nm.

What can you conclude about the relative magnitudes of the lattice energy of ammonium chloride and its heat of hydration? The lattice energy is smaller greater in magnitude than the heat of hydration.