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Problem- What is the mole fraction of sodium chloride in a solution made from 1.5 g sodium chloride in 100 mL of water? Assume the density of water is 1.00 g/mL.
I need proficient help to solve the above problem
Problem- The absorption of light by the pi electron system of a molecule can be modeled as an electron bound in a quantum well. For C4H6, the wavelength required to excite the lowest pi electron transition is 217 nm. Use this fact to estimate the av..
The mixed solution requires 28.55 ml of the EDTA solution to reach the end point. A similar amount of MgCl2 solution requires 2.60 ml to reach the endpoint.
What is the pH of a 0.15 M solution of the weak base ammonia (NH3). The Ka of the conjugate acid is (NH4) is 5.6e-10.
Compute the individual concentrations of HMR and MR in a mixture measured with absorbency 0.604 at 520 microns and absorbency 0.727 at 425 microns.
A solution contained KIO3 and excess KI. 25 cm3 of this solution were acidified and the liberated I2 required 26.8 cm3 of 0.1 M Na2S2O3 for complete recaction.
Compute the free energy change needed for transport of sufficient protons to make gastric juice of 1 litter at the temperature of 37 degree celsius hence expect above reaction will happen spontaneously?
lithium nitride can be produced by the reaction below. if the percent yield for this reaction is 28.63 how much lithium
A urine sample contains 46.5mgL-1 of ethanol. The density of ethanol is 0.79gcm-3. What is the concentration expressed as %v/v
A person breathes 2.6 L of air at -110 C into her lungs, where it is warmed to 370C. What is its new volume?
What would be the reaction sequence for cyclohexene to cyclohexane. Why is this so
nbspif an amount of heat 6.824 kj of is added to a coffee cup calorimeter containing 54.55 grams ofnbspwater in
Acetic acid is a weak monoprotic acid. it is the active ingredient in vinegar. if the initial concentration of acetic acid is .200 M and the equilibrium concentration of h3o+ is .0019 M, calculate Ka for acetic acid.
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