how can you use the physical properties of melting solubility and conductivity to classify ionic and covalent compounds?

Determine the partial pressure of oxygen necessary to form an aqueous solution that is 6.5 × 104 M O2 at 25°C. The Henry's law constant for oxygen in water at 25°C is 1.3 x 103 M/atm. 2.0 atm 0.85 atm 1.2 atm 0.50 atm 0.78 atm

31. Sea water contains dissolved magnesium at 0.1292% by mass. How many grams magnesium are in 1000g sea water?

NaCl is dissolved in water, the temperature of the water slightly decreases. Use this fact to explain why the salt NH4NO3 is used for instant cold packs.

13) The solubility of O₂ in water is approximately 0.00380 g L-1 when the temperature is 25.0°C and the partial pressure of gaseous oxygen is 760. torr. What will the solubility of oxygen be if the oxygen pressure is adjusted to 1000 torr? A) 1.49 g L-1 B) 0.00289 g L-1 C) 0.00500 g L-¹ D) 2.89 x 103 g L-1 E) 3.46 x 103 g L-1 13)

When the enthalpy of dissolution (Δ?°???) is positive, should solubility increase or decrease as the temperature is increased? Explain.

Explain the various factors that impact the solubility of substances in water

8. Identify the substance in each of the following pairs that would have the higher melting point and explain. a. Nacl or HCI b. NH3 or PH3 W DELL DELL

Vapor pressure of water is 31.8 torr at 30°C. If 17.9 g AlCl3 is dissolved in 100. g of water, calculate the vapor pressure of the solution. O 29.0 torr 28.2 torr O26.5 torr O 31.0 torr

Why does the boiling point of water always increase when a compound is added while the freezing point always decrease?