While the hydration enthalpies of divalent metal ions Ca?, Mn*² and Zn*2 show a linear increase, the values for V*2 and Ni² are apparently higher than this linear trend. Account for this difference.
Q: What is the degrees of freedom of a dilute solution of sulphuric acid in H2O and the number of…
A:
Q: Calculate the mass of a non-volatile solute (molecular mass 40) which should be dissolved in 114 g…
A:
Q: Explain the difference between an ideal and a non ideal solution.
A: An ideal solution is the one which obeys Raoult’s law over the entire range of concentration and it…
Q: DESCRIBE THE PREPARATION OF 1.0L OF NaOH SOLUTION THAT HAS A NORMALITY OF 0.25N AND (MW NaOH =…
A: The preparation of 1 L of 0.25 N NaOH solution has to be given,
Q: The mean activity coefficient of a 0.2 b Mg (NO3)2 solution is 0.13 at 25oC. Calculate the mean…
A: Given, Compound : Mg(NO3)2
Q: The mean activity coefficient of a 0.040 m H2SO4 solution is 0.354. What is its mean ionic activity?…
A:
Q: Estimate the mean ionic activity coefficient of CaCl2 in a solution that is 0.010 mol kg−1 CaCl2(aq)…
A: The ionization of CaCl2 is as follows: CaCl2 (aq) →Ca+2 (aq) + 2Cl- (aq) The concentration of Ca+2…
Q: A solution contains 5% w/v Al2(SO4)3.14H20 (MW = 600). Assuming there is complete ionization,…
A:
Q: Draw Vapour pressure vs composition (in terms of mole fraction) diagram for an ideal solution.
A: Draw Vapour pressure vs composition (in terms of mole fraction) diagram for an ideal solution.
Q: The molar conductivity of an electrolyte solution at 298 K is 135.5 S cm? mol1 and its concentration…
A: Molar conductivity = 135.5 S cm2 mol-1 Concentration = 5.35 × 10-2 M We need to find conductivity.
Q: Using the Debye-Huckel Limit Law, calculate the value of the mean ionic activity coefficient, g+, in…
A: Concentration of solution = 2×10-3 M Temperature = 25°C Mean ionic activity coefficient of…
Q: Br (aq) -121.6 (a) Calculate the enthalpy of dissolution for KBr(s) from the data. The lattice…
A:
Q: Define conductivity and molar conductivity for the solution of an electrolyte. Discuss their…
A:
Q: The osmotic pressure of an aqueous solution at 288K is 99.0 kPa. Calculate molality concentration
A: We have to find molality of solution
Q: The solubility of alum in 25 mL 1.4 M KOH plus 10 mL 9 M H2SO4 (our solution) is approximately 1.0 g…
A: Given: Solubility 1= 1.0 g Solubility 2= 1.7 g T1= 1.0°C T2= 6.0°C Temperature at time of…
Q: Calculate the formal concentration in molarity of a sodium acetate solution prepared by diluting…
A: The ppm is parts per million. This is one type of measurement of concentration of the solution.…
Q: Calculate ionic strength and mean ionic activity coefficient of a 0.03 molal aqueous solution of…
A: Given data: Molality of Na2SO4 = 0.03 Formula used:
Q: Estimate the mean ionic activity coefficient of NaCl in a solution that is 0.020 mol kg−1 NaCl(aq)…
A: Given Information - concentration of NaCl = 0.020 mol/kg concentration of Ca(NO3)2 = 0.035 mol/kg…
Q: The distribution coefficient of hydrogen sulfide between benzene and water at 25 degrees Celsius is…
A: The solution of the question is given below:
Q: 2. Why is there a difference in the conductivity of pure solid NaCl and of the 1.0 M NaCl solution?
A: Interpretation: The reason behind the conductivity of pure solid NaCl and of the 1.0 M NaCl solution…
Q: (i) Differentiate between adsorption and absorption.(ii) Out of MgCl2 and AlCl3 which one is more…
A: Multimolecular colloids Multimolecular colloids are the systems in which the dispersed phase…
Q: Based on the reported saturation points (in m/v %), which of the following compounds is the most…
A: The reported saturation points (in m/v %) are: Aluminum sulphate (36.4%) Barium acetate (75.0%)…
Q: Explain how the deposition of dead plants in a lake affects dissolved oxygen concentration in that…
A: Solution Rapidly moving water, like during a mountain stream or giant watercourse, tends to contain…
Q: Assuming 100% dissociation, calculate the freezing point (T) and boiling point (7) of 2.03 m K, PO,…
A:
Q: This question is related to chemical potential in a solution and how it relates to physical…
A: Since your question has multiple parts, we will answer the first question for you. If you want…
Q: State Kohlrausch law of independent migration of ions. Why does the conductivity of a solution…
A: Kohlrausch law of independent migration of ions is introduced by the German chemist Friedrich…
Q: These questions pertain to the activities of ideal and non-ideal solutions. а. How is the activity…
A: An ideal solution is the one that has no interactions between the molecules of solute in a solution.…
Q: Calculate the normality of 0.2M Na2CO3 (M.wt = 106).
A: Normality is a measure of concentration equal to the gram equivalent weight divided by volume of…
Q: Calculate the freezing point of a solution of 0.69 m chromium(III) nitrate (Cr(NO3)3) in water (Kf =…
A:
Q: The mobility of a chloride ion in aqueous solution at 25 °C is 7.91 x 10-8 m2 s-1 V-1. Calculate…
A: Molar ionic conductivity(∧) is property of solution containing 1 mole of solution whereas mobility…
Q: the vapor pressure of 1.00M solution of Sucrose (C12H22O11) and 1.00M solution of Al(OH)3 is…
A: Decrease in the vapor pressure of solution by addition of a nonvolatile solute is known as vapor…
Q: Calculate the average partial molar volume (in cm³/mol) of MgSO4 in the interval [0.1, 0.2] mol of…
A:
Q: If a pure solvent has a vapor pressure of 155 kPa, what is the value of the vapor pressure lowering…
A: Moles of solute = 2 Moles of solvent = 3 Vapour pressure of pure solvent = 155 KPa Lowering in…
Q: Na < NaCl < Na2O
A:
Q: 2. A and B form an ideal solution. At a total pressure of 0.90 bar, Xa(1)=0.65, XA(g) = 0.45. Using…
A: The partial pressure of solution is equal to the multiplication of vapor pressure of pure solvent…
Q: Calculate the freezing point depression caused in a 5.9 m solution with a Kb 1.86℃/ m and a…
A: The depression in freezing point is given by depression in freezing point = i X Kf X m where i =…
Q: The enthalpy change accompanying the dissolution of a solute B in 1000 g water is dependent on the…
A: Given - Delta H = 40n + 30n2 were, n= moles of B Delta H = enthalpy change for dissolution of B in…
Q: Given that p*(H2O)=0.02308 atm and p(H2O)=0.02238 atm in a solution in which 0.122 kg of a…
A: Activity of H2O = 0.97 Activity Coefficient of H2O = 0.98
Q: Assuming the Debye Huckel Limiting Law applies, At 25°C, estimate the mean activity coeficient, of…
A:
Q: In addition to filling in the blanks below, show all of your work for this problem on paper for…
A: Given Concentration = 25% Standard value Molar mass of Ca(NO3)2 = 164 g/mol
Q: Using the Debye-Huckel Limit Law, calculate the value of the mean ionic activity coefficient, g+, in…
A: Consider the Deby-Huckel limiting law as follows; log g± = -A Z+ Z- I Here, A is an asymmetric…
Q: What is the molar enthalpy change of solution for lithium iodide if the lattice energy is 732 kJ…
A: Enthalpy of solution is the sun of lattice enthalpy and hydration energy.
Q: Calculate the formal concentration in molarity of a sodium acetate solution prepared by diluting…
A:
Q: Out of AICI3 and NaCl, which is more effective in causing coagulation of a negative sol and why?
A: we know that the positively charged ion with a higher oxidation state is a better coagulating agent.
Step by step
Solved in 2 steps
- Determine the activity coefficients and effective concentrations (activities) of Na+ and Ca2+ ions in an aqueous solution having the following composition: [Ca2+] = 3.25x 10-3 M; [Na+] = 0.96x 10-3 M; [HCO3-] = 5.75x 10-3 M; [SO42-] = 0.89x 10-3 M. (Note: Solvated ionic radii are: a(HCO3-) = a(SO42-) = 4 Å; a(Ca+) = 6 Å)β‑Galactosidase (β‑gal) is a hydrolase enzyme that catalyzes the hydrolysis of β‑galactosides into monosaccharides. A 0.395 gsample of β‑galactosidase is dissolved in water to make 0.138 L of solution, and the osmotic pressure of the solution at 25 ∘Cis found to be 0.609 mbar. Calculate the molecular mass of β‑galactosidase.At room temperature, the equation for Gibbs free energy change of an uncharged solute moving into the cell is this [C ] AG = 1.4 kcal/mol * log10 [C,] %3D Imagine that a concentration of an uncharged solute outside the cell is 1 M, and inside the cell 10 M. The movement of this solute into the cell will be Thermodynamically favorable (negative G) Thermodynamically unfavorable (positive G) Thermodynamically neutral (G = 0) %D O O O
- At a certain temperature, the solubility of zinc(I) chromate is (7.6x10^-5) M. What is the Ksp? Report your answer to 2 sig figs. Note: Your answer is assumed to be reduced to the highest power possible(i) Differentiate between adsorption and absorption.(ii) Out of MgCl2 and AlCl3 which one is more effective in causing coagulation of negatively charged sol and why?(iii) Out of sulphur sol and proteins, which one forms multimolecular colloids?What mass of Cu3(AsO4)2 can be dissolved in 10.0 L of aqueous solution at 25 °C given that Ksp for this ionic compound is 7.6 x 10-36. Enter your answer in mg.
- Determine the Ksp of PbBr2 if its molar solubility in water at 25 °C is 1.05 x 10−2 M. You can use either Method 1 or 2. Note: This equation, (S = n+m√Ksp/nn . Mm), can be rearranged to the following to solve for Ksp; Ksp = S(n+m) . nn.mmThe mean activity coefficient of a 0.010 m H2SO4 solution is 0.544. What is its mean activity?What is the molar solubility of calcium carbonate (AGrxn=52.850KJ/mol) at 52.4°C in a solution prepared by dissolving 0.51 L of CO2 gas (at 26.9°C and 664.7 mmHg) and 4.029 g of solid Ca(OH), in enough water to make 560.98 mL of solution? Record your answer in micromolar and with 4 decimals.
- 4. Phosphate is precipitated from its solution with ammonium molybdate, as (NH4)a[PMo:2O40 XH20]. Since the precipitate does not have a constant composition with regard to water content, it is dissolved in ammonia and the molybdate is precipitated with Pb(NO3)2, as PbMoOs. (a) What is the value of the gravimetric factor for the calculation of %P? (b) If the final precipitate weighs 0.100 g, what is the weight of P in the initial sample?A chemist has a 50.0 mL sample of 0.010 M Na₂C₂O4 at 25 °C (solution A, oxalate ion = C₂04²-). An aqueous solution of Ca(NO3)2 with a volume of 50.0 mL (solution B) is added to solution A, at the same temperature. Above what minimum concentration must Ca(NO3)2 in solution B be, prior to mixing, to cause CaC₂O4 to precipitate given that for CaC₂O4, Ksp = 2.7 x 10-⁹ at 25 °C? Enter your answer with two significant figures, without units, and in millimolarity (mM) where: millimolarity = (molarity)(1000)Calculate the ionic strength of a solution that is 0.10 molKg-1 in KCl (aq) and 0.20 molKg-1 in CuSO4 (aq)