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- The size of a nitrate ion is 300 pm. In a 0.085 M NaNO3 aqueous solution at 25°C, what is the activity coefficient of NO3- ?If 0.454g of thyroxine is dissolved in 10g of benzene, the freezing point of the solution could be measured as 5.144 C. Pure benzene freezes at 5.444C and has a value for the molal freezing point depression constant of Kf of 5.12C/m. What is the approximate molar mass of thyroxine?Referring to Fig. 5.8, deduce the molar solubility of (i) NH4Cl, (ii) (NH4)2SO4 in water at 25 °C.
- The solubility of calcium arsenate (Ca3(AsO4)2, molar mass = 398.078 g) in water is measured to be 0.012 g/L. What is Ksp for this salt?What is the activity of liquid water of a multicomponent solution in which the vapor pressure of water is 748.2 mmHg at 100.0 0C?Of two KBr solutions, one 0.50 m and the other 0.20 m, which is hypotonic with respect to the other?
- 4 in which of the following solutions would solid AgI be expected to ve least soluble at 25c? 0.1 m sri2 0.1 m nai 0.1 m hi 0.1 m kno3What is the concentration of Cu2+ in a 1 mL solution taken from a 10 mL solution of (1) 0.040 M in CuSO4 and 0.050 M in tartrate(2) 0.040 M in CuSO4 and 0.100 M in tartrate(3) 0.040 M in CuSO4 and 0.150 M in tartrate all with distilled water (to equal the 10 mL)A 370.00 mL solution of 0.00185 M A3B4 is added to a 390.00 mL solution of 0.00100 M C3D4. What is pQsp for A3D4?
- How do I calculate the molarity for HT and the Ksp of KHTif the mean ionic activity coefficient ,? ± of KIO4 in the saturated solution 0.85, what Ksp of KIO4? the information is above in the paper.Use the systematic treatment to get the concentrations of all the species in a solution of:a.) 0.35 M CaF2 in water