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!
1). briefly explain the problem that arises if Fe3+ ion is not completely removed from the solution containing representative Group B-E cations in this Procedure.
2). Describe the method for checking for completeness of precipitation.
3). Briefly explain why precipitates are usually rinsed with distilled water before they are tested further.
4). A student analyzing an unknown solution containing some of the cations studied in this module records the following results. At each step indicate which cations are present and which have been proven absent from the unknown mixture. (1). 4 drops of 6M HCl solution are added to the unknown solution and no precipitate forms. (2). The pH of the solution from (1) is raised to 9.5 by addition of 6M NH3 solution. Acloudy, red-brown reaction mixture results.
In an experiment using a temperature probe, is there a way to estimate the heat absorbed by the temperature probe? Explain how.
the formation of nylon-6,10 from sebacoyl chloride, 1,6-hexanediamine and sodium hydroxide.
Write out the balanced net ionic equations representing the reactions that occur when iron (III) in water reacts with: A) Hydrochloric Acid.
One mole of oxygen molecules contains more independent units (O2) than one mole of oxygen atoms (O).
What is the HCl concentration of 33.7 mL of 0.350 M NaOH is required to titrate a 30.0 mL sample of the acid?
Each of the measurements below describes length. Rank them from longest length to shortest length. 1x10^4cm, 1mile, 50in, 10m
suppose new element with atomic number 120 is discovered.if some isotopes of this element have 122 nuetrons and some have 124 neutrons,what can you infer about the atomic mass of the element.
At 760 K, 15% of a sample of cyclopropane changes to propene in 6.8 min. What is the half-life of cyclopropane at 760 K?
consider a flask at 298 K with an air pressure of 738 mmHg to which some n-butanol is added. If the measured pressure after the addition is 745 mmHg, what is the vapor pressure of n-butanol at 298 K?
Calculate the amount of acid that would be left in the water solution after four 20-mL extractions with ether. Do the same calculation, using one 80-mL extraction with ether, to determine which method is more efficient.
A 50.0g silver object and a 45.0 g gold object are both added to a 55.5 mL of water contained in a graduate cylinder. what is the new water level in the cylinder.
draw the organic product of the following reaction between (1s,3s)-chloro-3methylcyclopentane and methanethiol
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