Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Copper in salt water near the discharge of a sewage treatment plantis determined by first seperating and concentrating it by solventextraction of its dithizone chelate at pH 3 into methyl chlorideand then evaporating the solvent, ashing the chelate to distroy theorganic portion, and titrating the copper with EDTA. Three 1-Lportions of the sample are each extracted with 25mL portions ofmethylene chloride and the extracts are combined in a 100 mLvolumetric flask and diluted to volume. A 50- mL aliquot isevaporated, ashed and titrated. If the EDTA solution has a CaCO3titer 2.69 mg/mL and 2.67 mL is required for titration of thecopper, what is the concentration of the copper in the seawater?
completely evacuated and then filled with an unknown gas to a pressure of 747 mmHg at 22 degree C. If the glass bulb gained 0.103 g in mass, what is the molar mass of the gas?
2Na + 2H2O → + H2 How many moles of hydrogen gas are produced when 0.066 mole of sodium is completely reacted?
The solubility product constant for AgCl at 298 K is 1.82 × 10-10. Calculate E° for the process AgCl+e----->Ag+Cl given that the standard reduction potential of the half-reaction Ag++e----->Ag is +.799V
the gaseous product of a reaction is collected in a 25L container at 27degrees celsiu. the pressure in the container is 300.0 kPa. how many moles of the gas are in the container.
Use the half reaction method to balance the following equation in acidic solution. It is not necessary to include any phases of matter for any species. It is not necessary to include any phases of matter for any species.
A certain substance has a molar heat of vaporization of 31.6 kj/mol. How much of the sunstance is in a sample that requires 57 kj to vaporize.
What is the chlorine flow rate at the reactor pressure and temperature. (b) If the etching rate of silicon is 0.50 ?/min, and the wafer is 300 mm in diameter, how many moles of silicon are etched per hour
2noclglt--gt2nog cl2ga pressure of 0.600 atm of nitrosyl chloride is sealed in a flask and allowed to reach
Calculate the following values at 25C using standard potentials as needed. E°cell, E cell, deltaG°rxn, and deltaGrxn
treatment of 4-chloro-1-butanol with one equivalent of lithium diisopropylamide lda as a base leads to rapid formation
Element 107, now named bohrium, was synthesized by German researchers by colliding bismuth-209 with chromium-54 to form a bohrium isotope and one neutron. Write a nuclear equation to represent this reaction.
Recrystallization from 95% ethanol gave yellow crystals. What is the overall mechanism for this reaction including all arrows, the identification of the electrophile and nucleophile, and all charges?
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd