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Compute the percent KHP (204.23 g/mol) in an unknown sample if 27.93mL of 0.1510 M NaOH were necessary to reach a phenolphthalein endpoint using a 2.3423 gram sample of unknown
Why does G always decrease as you move towards equillibrium no matter what concentrations of product and reactant you start with? or does it always decrease
A current of 11.3 A is applied to 1.25L of a solution of .552M HBr converting some of the H+ to H2(g).
classify each of the following as oxidation or reduction: a)electrons are gained b)requires a reducing agent c)Ni(s)>Ni^2+(aq) d)MnO4^-(aq)>MnO2(s) e)Sn^4+(aq)>Sn^2+(aq)
calculate the volume (L) the gas will occupy when the temperature is increased to 155 °C while maintaining the pressure at 629 torr.
What is the strongest base that may exist in water. What happens to stronger bases
Please draw the mechanism for this reaction: Acetic anhydride (C4O3H6) with 2 eqivalents of Dimethylamine (CH3)2HN makes C4NOH9 (one double bond going to Oxygen coming off the 2nd carbon and the 2nd carbon is also attached to the N.
P4(s) + F2(g)-> PF3(g) What mass of F2 is needed to produce 187 g of PF3 if the reaction has a 80.1% yield?
A low-melting solid A was isolated, which combustion analysis showed had composition C9H10O. The substance gave a precipitate when treated with 2,4-dinitrophenylhydrazine solution.
what is the ph change of a 0.270m solution of citric acid pka 4.77 if citrate is added to a concentration of 0.145m
Suggest at least one characteristic absorption each in the IR spectra of 9 fluorenone and 9 hydroxyfluorene that could be used to distinguish between these two compounds
estimate the mean ionic activity coefficient for nacl in a solution that is 0.020 molkg naclaq and 0.035 molkg cano32
Characterize each of the following as a strong, weak, or non-electrolyte: a. H2O, b.HCl, c.HNO3, d.KCl, e.KNO3, f.KOH, g.CH3CO2H, h.CUSO4, i.NH3, j.Ca(NO3)2,k. Al(NO3)3
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