Ascorbic acid has a pKa value of 4.10. What is the value of Ka? VZ

Q: Arrange the following molecules in order of increasing average molecular speed. NH3 at 432K, CO₂ at…

A: Cavg = 8RTπM  where Cavg = average molecular speed  R = universal gas constant = 8.314 J/mole.K T =…

Q: D3.* A distillation system with a still pot plus a column with one equilibrium stage is used to…

A: y = LVx + 1-LVxDwhere   LV = LoD1+LoD = 1.852.85 = 0.65hence y = 0.65x + 0.35xD Now we will get the…

Q: Consider the reaction: 2H₂O(l) → 2H₂(g) + O₂(g) Using standard absolute entropies at 298 K,…

A: Given: The reaction given is, 2H2O(l) → 2H2(g) + O2(g) T = 298 K, nH2O (l) = 2.26 moles ∆Ssys=?

Q: A vapor composed of 0.65 mole fraction ethanol and 0.35 mole fraction acetic acid at 120.0 mmHg…

A: Given, The mole fraction of ethanol in vapor phase, yE = 0.65 The mole fraction of acetic acid in…

Q: Two streams are mixed in an adiabatic mixer, as shown in the figure. It is known that: • Stream 1 is…

A: m1×e1 +m2×e2-m3×e3+Q-w=0Assuming steady state. adiabatic mixer and no work . change in KE and PE is…

Q: Direct dehydrogenation of ethylbenzene to styrene is carried out in the vapor phase with steam over…

A: To determine the most suitable type of reactor for this reaction system, several factors need to be…

Q: In an evaporator, dilute material enters, and concentrated material leaves the system. Water is…

A: Given that- In an evaporator, dilute material enters and concentrated materials go out. Water is…

Q: when acetone is heated in the gas phase, decomposition into ketene and methane takes place according…

A: Given values are- d=10 cm=0.1m L=10m  k=1.047 s-1 Temperature, T=7250C Number of tube=20 Pressure,…

Q: A heat exchanger

A: for a heat exchanger, Flue gas flowrate = 750 kmol/hr hot flue gas in: T1=400 C = P1=1atm flue gas…

Q: Calculate the enthalpy of the reaction: CO(g) + 1/2O2, (g) → CO2, (g)

A:

Q: hould be the overall composition of the mixture? ) Suppose you have 2.0 moles of component 1 and 2.0…

A:

Q: Consider the reaction: 2CO(g) + O₂(g) → 2CO₂(g) Using standard thermodynamic data at 298 K,…

A:

Q: Q1: Atmospheric air at 21 °C is flowing parallel to a flat plate at a velocity of 3 m/s. Assuming…

A: Atmospheric air is flowing to a flat plate at 21∘C. Velocity of air, V = 3 m/s Kinematic viscosity,…

Q: 24.22 As part of a bioseparations process, glucose (solute A) in aqueous solution (solvent B) is…

A: Given that thickness,t =2 mm =2×10-3 m d=3 nm =3×10-9 nmT =30 C dmean  =0.86 nm=0.86×10-9 nm

Q: . In the presence of 20,000 lb/h of air, an external gas stream is delivered into an air pollution…

A: External gas stream fed at rate = 10,000 lb/h presence of air in air pollution control device =…

Q: Calculate the theoretical flame temperature when ethylene at 25 degrees Celsius is burned with: a.…

A: Write the reaction between ethylene and oxygen as follows: C2H4 + 3O2 → 2CO2 + 2H2O One mole of C2H4…

Q: 26. Based on the graphs below, what order reaction would you say is being shown? [A] vs time In[A]…

A: Three graphs are given. Here [A] is the concentration of reactant "A". We will assume each the…

Q: Question 8 Use the AHºf information provided to calculate AH°rxn for the following: 2CIF3 (g) +…

A: Given that :2CIF3+2NH3→N2+6HF +Cl2

Q: 1A H2A Li Be Na Mg 3B 4B 5B 6B 7B8B K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Rb Sr Y Zr Nb Mo Tc Ru Rh…

A: Using only the periodic table arrange the following elements in order of increasing ionization…

Q: A liquid is flowing via pressure gradient through a duct with the cross-sectional shape of an…

A: Assume flow is laminar and fluid is incompressible the pressure drop in a cylindrical pipe is given…

Q: For the consecutive reaction AR-S, write out the concentrations o 0.35/hr and k₂ 1.55/hr, plot the…

A:

Q: What are some of the challenges associated with scaling up chemical processes from laboratory to…

A: Challenges we address include the following physical and chemical elements of a scale-up of process…

Q: The liquid phase reaction A -> R with the rate equation rA= -KCA²  is carried out in a tank reactor.…

A: The turnover of a reactor is defined as the ratio of volumetric flow rate of solution flowing…

Q: Consider a system consisting of a cylinder with a movable piston containing 106 gas molecules at 298…

A: Given that- A gas cylinder has, initial gas molecules= 106 Initial temperature= 298 K Initial…

Q: 2. plata rate of 10,000 kg/hr, calculate the flowrate of the liquid quid leaving the unit, this…

A: A feed is sent into a mixer and followed by a calciner. There are two discharges from the calciner.…

Q: In an experiment, a 0.6451 g sample of benzoic acid ( C7H6O2) is burned completely in a bomb…

A: Q=mc△T + heat taken by calorimeter    , where c = heat capacity of water…

Q: 3. A counter flow double pipe heat exchanger using super heated steam is used to heat water at the…

A: Counter flow heat exchanger is given with superheated steam. Superheated steam mass flow rate, ms =…

Q: A chemistry graduate student is studying the rate of this reaction: NH,OH(aq) →+NH, (aq)+H,O(aq) She…

A: An aqueous reaction is given as, NH4OH → NH3 + H2O The concentration of reactant NH4OH is measured…

Q: 12.30.0 mL of 0.20 M AgNO3 are added to 100.0 mL of 0.10 M HCI in a thermally insulated vessel. The…

A: Volume of AgNO3= 30 mL or 0.03 L Molarity of AgNO3= 0.2 M or mol/L Volume of HCl = 100 mL or 0.1 L…

Q: batch reactor.

A:

Q: Ammonia is removed from a 10 % ammonia-air mixture by scrubbing with water in a packed tower, so…

A: Absorption is a separation process in which solute is separated from the air mixture with the help…

Q: 1 From data in the steam tables, determine a good estimate for flfsat for liquid water at 150°C and…

A: temperature (T)= 150oC=(150+273.15)K=323.15K pressure (P)=150 bar=15000 kPa ϕisat  =fisatPisat…

Q: A distillation column is to be used for separating n-butane and n-pentane where the feed (F) mole…

A:

Q: Imagine a PEEK implant that is 1.612 cm in length with a circular radius of 1.327 mm. Note that 1…

A: A polymer material, PEEK is given with following properties, Length, L = 1.612 cm = 1.612×10-2 m…

Q: The irreversible, exothermic liquid-phase reaction A----->B is to be carried out in a 1 m³ adiabatic…

A:

Q: An insulated room is heated by burning candles. Is this a heat or work interaction? Take the entire…

A: Using the entire room as the system, there is no heat interaction because it is well insulated (no…

Q: 160 E160 1610 D140 161 1620 1650 P160 RD160 父 V165 1630 1640 父 V166 1660

A: Feedback controls are widely used in modern automated systems. A feedback control system consists of…

Q: Consider a system consisting of 1.5 mol CO.(g), initially at 15 °C and 9.0 atm and confined to a…

A: Given that n=1.5 molT=15 C=288.15 KP1 =9 atm =9 ×101325 =911925 PaP2=1.5 atm =151988 PaA=100 cm2Cv…

Q: A single effect evaporator is used to concentrate a dilute stream of sugar syrup containing 15%…

A: Concentration of solids entering the evaporator = 15 % Concentration of solids exiting the…

Q: the following temperature-composition data were obtained for a mixture of octane (O) and…

A: The vapor liquid equilibrium curve is used to describe the composition of species between the liquid…

Q: 1. The pyrolysis of ethane is performed at a temperature of 500 °C and the activation energy for the…

A: Pyrolysis of ethane is done at 500∘C and activation energy is found to be 75000 cal/mol. Another…

Q: Figure 1b shows the chemical structure of a tetrafluroethylene molecule and Table 1b gives the…

A: Monomer = tetrafluoroethylene Molecular weight range, number fraction, and weight fraction of a…

Q: A gas stream containing 3% A is passed through a packed column to remove 99% of the A by absorption…

A: Absorption is a separation process in which solute is separated from the air mixture with the help…

Q: Isb re at 45°C 10 mmHg to a g a portion hexane and mHg) and c the chiller to e original go 10 to…

A:

Q: Which of the following transformations represent an increase in the entropy of the system. Choose…

A: Entropy of a substance represents the degree of randomness. Higher the randomness, greater will be…

Q: The binary system acetonitrile (1)/nitromethane (2) coexists with Raoult's law. Vapor pressures for…

A:

Q: Consider 500mL of a benzene-hexane mixture at 50°C containing 30% of the more volatile. a)…

A: A mixture of benzene and hexane is given. Temperature of the mixture = 50 0C Volume of the mixture =…

Q: Ammonia vapor is compressed to 60 bar and 105°C. Use the SRK equation of state to determine the…

A: Pressure, P = 60 bar Temperature, T = 105 0C Critical temperature, Tc = 405.5 K Critical pressure,…

Q: Use the enthalpy changes given in the data below to calculate the enthalpy change for this reaction:…

A: there is chemical reaction given and their enthalpy of formation is given at 298 k We have to find…

Q: A rectification column is fed 100 kg mol/h of a mixture of 50 mol % benzene and 50 mol % toluene at…

A: The flow rate of feed, F = 100 kg mol/h The mole fraction of benzene in the feed, xF = 0.5 The mole…