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Problem- List reasons why the theoretical pH value of the buffer you prepared was different from the experimental pH value.
sketch a pv diagram and find the work done by the gas during the following stages. draw the pv diagram on paper. your
A sophisticated ultraviolet/visible/near-IR instrument has a wavelength range of 185 to 3000nm. What are its wavenumber and frequency ranges
Chemical reaction calculations, 1. Unbalanced equation SOCL2(1) + H2O(1) --- SO2(g) + HCl(g). How many molecules of H2O can 35.0 grams of thionyl chloride remove?
ammonia, NH3, reacts with hypochlorite ion, OCl-, to produce hydrazine, N2H4. How many moles of hydrazine are produced from 5.85 mol of ammonia if the reaction has a 78.2% yield
Explain the purpose of adding 6 M HCl to the aqueous layer with sodium benzoate. Draw the reaction between sodium benzoate and HCl.
which types of solutes tend to be insoluble in pure water but soluble in acid or in base
Compound A, C12H22O, undergoes reaction with dilute H2SO4 at 25 °C to give a mixture of two alkenes, C12H20. The major alkene product, B, gives only cyclohexanone after ozone treatment followed by reduction with zinc in acetic acid. Draw the struc..
A system comprised of 2.900×10^1 g of Ne(g) cools from 170.0°C to 45.0°C at a constant pressure of 5.5 atm. The molar heat capacity at constant pressure for Ne(g) is 20.80 J K?1 mol?1. calculate q,w,delta E, ANDdelta H
Compute the relative and actual surface areas actual values in m2 g-1 of soot particles p= 0.6 g mL-1 having diameters 20 microliters and 2 microliters, respectively presuming that the prrticles are speres.
What is the total pressure in a 11.0 L flask 20.0°C, which contains 0.127 moles of H2 and 0.288 moles of N2
The Goodyear blimps, which frequently fly over sporting events, hold approximately 1.60×105 ft^3 of helium. If the gas is at 25deg C and 1.0 atm, what mass of helium is in the blimp
Calculate the pressure and the temperature of the compressed gas. In a diesel engine the compression ratios are typically much higher; redo the same calculation for the compression ratio of 20:1.
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