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!
When a solution of a chromium salt X is electrolysed, chromium metal is deposited on the cathode, according to the following equation. Crlaq) ne- Cr(s) When a current of 'IAA was passed for 40 minutes through a solution of salt X, it was found that 0.776g of chromium had been deposited.
Calculate the value of n in the above equation. Show your working.
n = [4]
A compound contains the elements Ca and F. Analysis indicates that 2.94 g of sample of the compound contains 0.93 g calcium. Calculate the mass of fluorine in the sample.
An experimenter finds that she is unable to establish a premixed carbon monoxide flame when using an oxidizer composed of high-purity O2 (21%) and high-purity N2 (79%)
How many milliliters of 0.02 N standard versenate solution would be required in the API titration for total hardness? b) Express the concentrations of Ca2+ and Mg2+ in parts per million
Problem- Calculate the solubility of Cu(Oh)2 in g/l. Ksp of Cu(OH)2 is 2.3x10^-20 and molar mass of Cu(OH)2 =100 g/mol. the answer is 1.8x10^-5
The enthalpy of the reaction DH = -484 kJ. What is the enthalpy change (in kJ) when 1 grams of hydrogen are burned
what is the ph of a buffer solution prepared from equal volumes of .25 m sol of a weak acid and .025 m sol of the salt of that weak acid. the acid has a pka of 4.82
A solution of 75.0g of benzene and 75.0g of toluene has a total vapor pressure of 80.9mmHg at 303K. Another solution of 100.0g of benzene and 50.0g toluene has a total vapor pressure of 93.9mmHg at this temperature.
If the valence shell is considered to be n=4, how many valence electrons are in a stable ion of a period 4 metal
Explain how would you sysnthesize Heptan-4-ol from 1-butene as well as using butene as your merely carbon source
Question- When a 8.00-g sample of KBr is dissolved in water in a calorimeter that has a total heat capacity of 2.676 kJ•K-1, the temperature decreases by 0.500 K. Calculate the molar heat of solution of KBr.
A 375mL sample of gas is initially at a pressure of 721 torr and a temperature of 32°C. If this gas is compressed to a volume of 286mL and the pressure increases to 901 torr, explain what will be the new temperature of the gas (reported to three s..
When hydrochloric acid comes in contact with potassium permanganate, what dangerous chemical is released?
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