Find the molarity of the ethanol in solution
A solution of ethanol (C2H5OH) in water is prepared by dissolving 90.0 mL of ethanol (density = 0.79 g/cm3) in enough water to make 255.0 mL of solution. What is the molarity of the ethanol in this solution?
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Find the normal boiling point of a saturated solution of LiF at 100 ? C, assuming it un- dergoes complete dissociation.
What will be the impact on mechanical properties of the blend if the components are immiscible?
A cylinder of compressed nitrogen gas contains 867 g N2. If the volume of the cylinder is 22.5 L, what is the pressure of the N2 if the gas temperature is 298K?
An unknown semiconductor has Eg=1.1 eV and Nc=Nv. it is doped with 10^16/cm^3 donor atoms a) determine the type of semiconductor after doping b) Given that Ef is 0.2 eV below Ec, calculate Ni and the concentration of electrons and holes in semicondu
A 25-ft long crane supported at its lower end by a pin is elevated by a horizontal cable as shown in the figure. A 250-lb load is suspended from the outer end of the crane.
Explain how alkene/aromatic C-H stretches are distinguishable from alkane C-H stretches. DO the C-H stretch peaks in the IR spectra of triphenylmethanol, bromobenzene, and benophenone occur.
A syringe initially holds a sample of gas with a volume of 285 mL at 355 K and 1.88 atm. To what temperature must the gas in the syringe be heated/cooled in order to have a volume of 435 mL at 2.50 atm?
If one body is positively charged and another body is negatively charged, free electrons tend to move from the negatively charged body to the positively charged body.move from the positively charged body to the negatively charged body.remain in the n
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