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The purpose of this problem is to compare the value of tPLH obtained with a resistive load [see Fig.(a)] to that obtained with a current-source load [see Fig. (b)]. For a fair comparison, let the current source I = VDD/RD, which is the initial current available to charge the capacitor in the case of a resistive load. Find tPLH for each case, and hence the percentage reduction obtained when a current-source load is used.
A 0.1651-g sample of an unknown monoprotic acid was dissolved in 28.4 mL of water and titrated with 0.0634 M NaOH solution. The volume of base required to bring the solution to the equivalence point was 19.1 mL. Calculate the molar mass of the aci..
What is the wavelength of an electron traveling with a velocity of 7.0 times 10 to the 3rd power?
Write the formulas of the conjugate base of the following acids: a) HNO2 b) H2SO4 c) H2S d) HCN e) HCOOH
Determine the equilibrium concentrations of the following: a. The cobalt ion concentration of a saturated solution of Cos b. The pH of a saturated Zn(OH)2 solution c. The lead (II) ion concentration of a saturated solution of PbCL2
A mixture of 2.0 mol of H2 (g) and 1.0 mol of O2 (g) is placed in a sealed evacuated container made of a perfect insulating material at 25C. The mixture is ignited with a spark and it reacts to form liquid water. Find the temperature of the water.
A gas expands and does P-V work on the surroundings equal to 323 J. At the same time, it absorbs 145 J of heat from the surroundings.
Using Standard Free Energies of Formation at 25 degrees C, determine if the production of phosgene gas COCl2 from the combination of carbon monoxide gas (CO) and chlorine gas (Cl2) is spontaneous at room temperature.
In a titration of HNO3, you add a few drops of phenolphthalein indicator to 50.00 mL of acid in a flask. You quickly add 26.50 mL of 0.0502 M NaOH but overshoot the end point
Concentration of NADH was found by using beer's law using 6.22 mM cm-1 as extinction coefficient. Concentration of NADH = .0212 mM. Moles of NADH that are present in 1.02 mL sample was found by : .0212 mM x 1.02 mL = .021624 mM/mL
Calculate the percent yield for a student who completed experiment 27A and collected the following data. Give your answer to two decimal places.
A solution containing both A and B in a 1-cm cell showed an absorbance of 0.726 at 267 nm and 0.544 at 312 nm. What are the concentrations, mg/L, of A and B
What is the percent yield of a reaction in which 244 g phosphorus trichloride reacts with excess water to form 144 g HCl and aqueous phosphorus acid (H3PO3)?
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