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what are the other applications of u.v spectrometry ?
apart from beer Lambert law and using u.v spectrometry to determine a concentration
apart from beer Lambert law and using u.v spectrometry to determine a concentration
how do you know if beer lambert law has been obeyed
state beer lamberts law and explain the principles behind it
In phytochemial screening, steroid should present in groundnut. However, after doing the experiment, steroid failed to present in groundnut? why? Is there something wrong with the experiment carried out?
Would it be possible to increase the kinetic energy of the particles within a reaction by ionising the constituent molecules and using magnetism to assert an acceleration on them. Could you use this as an alternative to heat?
What volume of 0.117 M HCl is needed to neutralize 28.67 mL of 0.137 M Ca(OH)2 ?
Arsenic in 7,150 g of a herbicide is converted in arsenate ions (AsO4{3-}) and the arsenate ions form a precipitate of Ag3AsO4 with 25,00 ml of AgNO3 solution 0,05000 M. The excess of Ag{+} is titrated with 3,85 ml of a KSCN solution 0,0500 M. Calculate the % concentration of arsenic in the sample.
Draw a complete, fully labelled Born Haber cycle for the formation of Sodium Chloride crystal.
Explain using an enthalpy cycle, the relationship between these changes and the solubility of the substance .
Explain using an enthalpy cycle, the relationship between these changes and the solubility of the substance .
How to write thermochemical equations for reactions
In 50,00 ml of a solution (solution A) containing Na2CO3 and Na2SO4, 25,00 ml of BaCl2 about 0,2 M (excess) are added.The forming precipitate is removed and stored and the excess of Ba2{+} is titrated with 21,80 ml of EDTA 0,0705 M. During the blank titration 50,00 ml of water were used and 37,40 ml of EDTA were consumed. The precipitate that was stored, is heated with 20,00 ml of HCl about 0,1N and the excess of the acid is titrated with 11,01 ml of NaOH solution 0,0990 M. During the blank titration 20,00 ml of HCl solution were used and 21,11 ml of NaOH solution were consumed. Write all the reactions that take place and calculate the molar concentrations of Na2CO3 and Na2SO4 in solution A in mmol.ml
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#339914 on Dec 2023
#339914 on Dec 2023