The optical band gap exhibits red shift from 2.12 eV to 2.02 eV with an increase in S:Sn precursor molar concentration. Electrical studies show that the films having S:Sn molar concentrations 0.01:0.01 and 0.02:0.02 exhibit minimum resistivity values of 0.238 and 0.359惟 路cm, respectively. ...
If 0.6 g of KHP requires 24.86 mL of NaOH solution to just consume the KHP, what is the concentration of the NaOH? What is the molar concentration of NaOH if a 0.920 grams sample of potassium hydrogen phthalate (KHC8H4O4) is dissolved i...
Calculate the value of Ksp for ZnS. What is the molar solubility & molar concentration of each ion of Ag3PO4 in the water? Ksp = 8.9 X 10-17 . If the molar solubility of cobalt(II) hydroxide is 5.4 x 10^-8 mol/L in pure water, what is its Ksp ...
Babcock_Hall Chemist Sr. Member Posts: 5749 Mole Snacks: +333/-24 Re: Is molar concentration (M) the same thing as [H+][OH-] concentration? « Reply #3 on: July 02, 2018, 10:02:59 AM » Yes, your calculation of -1 for the pH looks fine, and there is no reason why ...
The molar rate of transfer of component A, per unit area, in a mixture of A and B is given by Fick's Law, viz. (1) where Na = molar rate of diffusion/unit area, DAB = diffusivity of A in B, CA = molar concentration of A, y = distance in direction of diffusion. Similarly, ...
LS has something in common with the viscosity detector that is a molar mass-sensitive detector; thus, the LS signal is proportional to the concentration and the molar mass of the polymer chains. The scattered light of a polymer in solution can be measured at several angles. There are LS equ...
Posttraumatic Stress and Depressive Symptoms, Alcohol Use, and Recurrent Traumatic Life Events in a Representative Sample of Hospitalized Injured Adolescen... extinction coefficient for the sample temperature, and divided by the known or accurately determined molar protein concentration. Ellman's reagent is...
Re:Molar heat of combustion for alcohols «Reply #1 on:December 05, 2005, 07:46:35 AM » Try doing it in a calorimeter with Pure oxygen/ air with higher oxygen concentration supplied into the chamber. Use only a small amount of alcohol in that thing, esp when using pure oxygen. ...
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A general method is presented for estimating concentration-dependent partial molar volumes for individual ions of heavy density gradient salts used in the isopycnic ultracentrifugation of charged macromolecules. 关键词: Partial molar volume Density gradient Isopycnic centrifugation DOI: 10.1016/0304-4165(79...