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need to know the experimental procedure for determining the presence of metal in the sugarcane by using atomic absorption spectroscopy
This problem describes a gravimetric titration in which the mass of titrant is measured instead of the volume. A solution of NaOH was standardized by titration of a known quantity of the primary standard potassium hydrogen phthalate (KHP) which ha..
Calculate the work done in Joules when one mole of an ideal gas, initially at P = 9 atm, T = 298 K is expanded isothermally to P = 1 atm if (a) the expansion proceeds against a onstant external pressure Pext = 1 atm; (b) the external pressure is r..
If 25 mL of 7.0 M H_2SO_4 was spilled, what is the minimum mass of NaHCO_3 that must be added to the spill to neutralize the acid?
The methyl benzoate and acetanilide react with HNO3, H2SO4, and glacial acetic acid. Need to know the possible products and then the one that actually forms.
What mass of gold is produced when 12.8 A of current are passed through a gold solution for 44.0 min. Express your answer with the appropriate units.
Why is it that when you look into any type of light for a long period of time that blotches of black appear when you look away
Calculate the molar solubility of lead thiocyanate in .900M KSCN ,when the Pb(SCN)2 has a Ksp value =2.00X10^-5, Calculate the molar solubility of MX (Ksp rate =1.27X10^-36) in pure water.
Explain why the C=C stretching mode gives rise to a rather weak IR band in 1-methylcyclohexane, while in its isomer
Calculate the weight of helium in pounds to fill a ballon whose capacity is 1.0 X10^6 ft^3 at 1 atm pressure and 27 C.
The first step of the Wittig reaction occurs through what kind of mechanism? A. acid-base B. SN2 C. rearrangement D. nucleophilic acyl substitution
the three species n2 co and cn- are isoelectronic. comment on the location of any formal charges in these moleculesion
Styrene is produced by catalytic dehydrogenation of ethylbenzene at high temperature in the presence of superheated steam. A.) Given the following data, what is the delta Hrxn, delta Grxn and delta Srxn at 298 K
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