Conductivity of 2.5 X 10-4M methanoic acid is 5.25 X 10-5 S cm-1 Calculate its molar conductivity and degree of dissociation.Given: A°(H+) = 349.5 S cm2 mol-1 and A°(HCOO– ) = 50.5 S cm2
Q: Calculate the osmolarity in mOsm/L of 500 mL of a solution containing 5% w/v dextrose, 0.78% w/v…
A: Osmolarity in mOsm/L is defined as the millimoles of solute particles per Liter of the solution.…
Q: Calculate the molar conductivity of NH4OH at infinite dilution if the following data are known: Λo…
A: The molar conductivity of NH4OH can be calculated as:-
Q: The conductivity of 0.001 M acetic acid is 4 × 10-5 S/cm. Calculate the dissociation constant of…
A:
Q: Use the thermodynamic quantities given below to calculate the theoretical ΔH for this reaction:…
A:
Q: Use the thermodynamic quantities given below to calculate the theoretical ΔH for this reaction:…
A: For calculating the value of ∆H =Sum of ∆H∘f products - sum of ∆H∘f reactants NH3+HCl→NH4Cl NH3 and…
Q: The specific conductance of a 0.01M solution of acetic acid at 298K is 1.65×10-4 ohm-1 cm-1. The…
A: The following information given in the question - Concentration of Acetic acid, C = 0.01 M…
Q: ) Calculate the normality and formality of a potassium permanganate solution of which 35.00 mL are…
A: The question is based on the concept of quantitative estimation. we have to calculate formality and…
Q: At 298 K, the electrolytic conductivity of a 0.2 M KC1 solution is 2.50 X 10-2S cm-1. Calculate its…
A:
Q: 9. The molar conductivity values at infinite dilution, in units of Sm?mol1, of NHẠCI, NaCl and N2OH…
A:
Q: Calculate the heat loss or heat gain of the 3 solution mixtures (qrxn). Then calculate the ΔH for…
A: Mass = Volume × Density qreaction = Mass × Specific heat capacity ×temperature change
Q: The mean activity coefficients of HBr in three dilute aqueous solutions at 25° C are 0.930 (at 5.0…
A: Interpretation: Mean activity coefficients of HBr 0.930 (at 5.0 mmol kg-1), 0.907 (at 10.0 mmol…
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: The mean activity coefficients of KCl in three dilute aqueous solutions at 25 °C are 0.927 (at 5.00…
A:
Q: P14C.2 The surface tensions of a series of aqueous solutions of a surfactant A were measured at…
A: The surfactant is A Surface tensions of a series of aqueous solutions of this surfactant were…
Q: Calculate the ionic strength of a solution of iron (III) carbonate, Fe 2(CO3)3 of concentration…
A:
Q: The conductivity of a 0.0312 M solution of a weak base is 1.53 x 104 Scm. If the sum of the limiting…
A:
Q: A reagent bottle contains 250 cm3 of 0,4 mol.dm–3 oxalic acid (C2O4H2) solution. Calculate the mass…
A: Initial concentration of oxalic acid = 0.4 mol/dm3
Q: What is the strength of the ionic interactions between an ion with 1 positive charges and an ion…
A: The ionic strength of a compound depends on the amount of force of attraction between the two ions.…
Q: Calculate the ionic strength of a solution that is 0.15 mol kg-1 in KCI(aq) and 0.30 mol kg-1 in…
A: Given: Moles of the solution in KCl=0.15mol Kg-1 Moles of the solution in CuSO4=0.30 mol Kg-1
Q: Q 1. At 291 K, the equivalent conductivities at infinite dilution of HCI NaCl and CH3COONA are…
A:
Q: Calculate the membrane potential caused by the different concentrations of an ionic element on…
A:
Q: 6. If molar conductivity of HCl solution at 25° C is 425 Scm2 mol'at infinite dilution. The specific…
A: The expression of molar conductivity is shown below: λm =κc where; λm = molar conductivity k =…
Q: The mean activity coefficients of HBr in three dilute aqueous solutions at 25 °C are 0.930 (at 5.0…
A: GIVEN: Mean activity coefficients of HBr at 25 °C are 0.930 (at 5.0 mmol kg-1), 0.907 (at 10.0 mmol…
Q: Sucrose (C12H22O11), which is commonly known as table sugar, reacts in dilute acid solutions to form…
A: Given reaction : C12H22O11 (aq) + H2O (l) → C6H12O6(aq) + C6H12O6 (aq)
Q: Given the following molar conductivities at infinite dilution: sodium propionate (NaPr), 85.92 S cm²…
A: Molar conductivity of NaPr = 85.92 S cm2mol-1 Molar conductivity of HCl =426.04 S cm2mol-1 Molar…
Q: The molar conductivity of a 1.5 M solution of an electrolyte is found to be 138.9 S cm2mol-1.…
A: The molar conductivity and conductivity are related as-λm=κ×1000cc is concentrationκ is…
Q: Conductivity of 0.001028 M of acetic acid is 4.95 x 10-5 S cm-1. Calculate the dissociation constant…
A:
Q: Calculate delta G(degree). Give your answer in kJ. 3Ag+ (aq) + Cr (s) → 3 Ag (s) + Cr3+…
A: The change in standard Gibbs free energy (ΔG°) for the reaction = - nFE° Where, n = number of…
Q: How does the spectrophotometer measure absorbance?
A: Hey, since there are multiple questions posted, we will answer first question. If you want any…
Q: 13. The molar conductivity of 0.0300 M HF (aq) is 4.10 mS m² mol¹. Determine the acidity constant,…
A: Given data
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: 8. For a solution of 3.12 x103 mol/L CH;COOH the specific conductance 1.49 x 104 S/cm, and molar…
A: Calculation of molar conductance, ƛ: λ=k×1000M where k is the specific conductance and M is the…
Q: The molar conductivity of a 1.5 M solution of an electrolyte is found to be 138.9 S cm2 mol-1.…
A: The molar conductivity of a solution at any given concentration is related to specific conductivity…
Q: Missing molar conductivity Given: Conductivity: 281 us x cm^-1 (microseconds/cm) Concentration of…
A:
Q: The limiting molar conductivities of KCl, KNO3 and AgNO3 are 14.99, 14.50 and 13.34 mS- m2/mol,…
A:
Q: ng point determination can be used for several purposes. What are those purposes? effect on the…
A: Condensation is the change of vapour into liquid and evaporation is the change of liquid into…
Q: Phenylalan ine (Phe. 1) is a naturally occurring amino acid with a benzene ring. What is the energy…
A: The dipole induced interaction energy is given by; E=-Cr6 Here, r is the distance between groups and…
Q: The molar conductivity of 2.7 M HA (weak acid) is 50 (mS.cm2/mol), whereas its molar conductivity at…
A: c = 2.7 M Molar conductivity at infinite dilution =…
Q: Temperature - distillate volume plot for fractional distillation of benzene (b. pt. 80°C) and…
A: When temperature becomes above than that of the boiling point, then that particular liquid start…
Q: Calculate the ionic strength of a solution that is 0.15 mol kg-1 in KCI(aq) and 0.30 mol kg-1 in…
A: Given: Molality of KCl = 0.15 mol kg-1 Molality of CuSO4 = 0.30 mol kg-1
Q: 1. Given that the formation enthalpies and entropies of the selected ionic compound, cation, and…
A:
Q: Q 1. At 291 K, the equivalent conductivities at infinite dilution of HCl „NaCl and CH3COONA are…
A:
Q: Calculate the molar conductivity of NH4OH at infinite dilution if the following data are known: A°…
A: The given data is as follows: Λ°(NaOH)=248×10-4 Siemen mol-1 m2Λ°(NaCl)=126×10-4 Siemen mol-1…
Conductivity of 2.5 X 10-4M methanoic acid is 5.25 X 10-5 S cm-1 Calculate its molar conductivity and degree of dissociation.
Given: A°(H+) = 349.5 S cm2 mol-1 and A°(HCOO– ) = 50.5 S cm2
Step by step
Solved in 2 steps with 3 images
- The equivalent conductance of a 0.0140N solution of chloroacetic acid is 109.0 at 25 degrees C. What is the ionization constant (Ka) of chloroacetic acid?Calculate the degree of dissociation (a) of acetic acid if its molar conductivity (Λm) is 39.05 S cm2 mol-1.Given: λ°(H+) = 349.6 S cm2 mol-1 and λ°(CH3COO–) = 40.9 S cm2 mol-1The conductivity of a 0.05M solution of acetic acid at 18°C is 4.4 × 10-4 Ω-1cm-1. Λ° of acetic acid at the same temperature is 387 Ω-1cm2. Calculate the dissociation constant (Ka) of acetic acid?
- The conductivity of 0.001 M acetic acid is 4 × 10-5 S/cm. Calculate the dissociation constant of acetic acid, if molar conductivity at infinite dilution for acetic acid is 390 S cm2/mol.The equivalent conductance of a 0.0140N solution of chloroacetic acid is 109.0 at 250C. What is the ionization constant (Ka) of chloroacetic acid?At 298 K, the electrolytic conductivity of a 0.2 M KC1 solution is 2.50 X 10-2S cm-1. Calculate its molar conductivity.
- 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)Why is the conductivity of mixture C larger than the conductivity of mixture A? C Mixture made by mixing equal volumes of 0.2 mol L–1 HCl and 0.2 mol L–1 NaCl Conductivity (mA) 340 PH 1 A 0.1 mol L–1 HCl 260 1Given that the vapor pressure of water is 17.54 Torr at 20 °C, calculate the vapor-pressure lowering, AP, of an aqueous solution that is 2.20 m in sucrose (C₁2H₂2O₁1). ΔΡ = Calculate the vapor-pressure lowering, AP, of an aqueous solution that is 2.20 m in calcium chloride. Assume 100% dissociation for electrolytes. ΔΡ 0.669 || 2.00 Incorrect Torr Torr
- The overall reaction is given as follows. C6H12O6 (s) + 6 O2 (g) → 6 CO2 (aq) + 6 H2O (l) Calculate the change in the Gibbs energy (in kilojoules) at 37.1ºC for 94.81 g of glucose with excess oxygen.A solution is 1.4×10−2 MM in Ba2+Ba2+ and 1.9×10−2 MM in Ca2+Ca2+. Consider that Ksp(BaSO4)=1.07×10−10Ksp(BaSO4)=1.07×10−10 and Ksp(CaSO4)=7.10×10−5Ksp(CaSO4)=7.10×10−5. What minimum concentration of Na2SO4Na2SO4 will trigger the precipitation of the cation that precipitates first?9. The molar conductivity values at infinite dilution, in units of Sm?mol1, of NHẠCI, NaCl and N2OH are 1.497 x 10², 1.2645 x 10² and 2.478 x 10², respectively. (a) Calculate the molar conductivity at infinite dilution of NH4OH. (b) The molar conductivity of 0.0100 moldm3 NH,OH is 1.13 x 103 Sm?mol. What is the degree of dissociation and the dissociation constant, Kp, of 0.0100 moldm3 NHẠOH?