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!
While 5.0 g of an unknown substance is dissolved in 100.0 g of water, the freezing point of the solution reduces by 1.5 degrees Celsius. Explain what is the molar mass of the unknown substance if the compound doesn't dissociate to form ions in solution, that is, i=1?
In an Fe and Cr voltaic cell where the Fe is in Fe(NO3)2 and the Cr is in Cr(NO3)3; calculate the cell potential at 25 C if the initial concentration in the half cells are as follows [Cr 3+] = 2.45M and [Fe 2+] = .75 M
The fired crucible is handled with oily fingers before its mass measurements. Subsequently the sample is heat and the oil from the fingers is burned off. Will the percent water in the hydrated salt be reported as being too high, too low or unaffec..
the current vs. time graph for a particular electrochemical reaction run at 25degc shows that the current drops off to
Calculate the pH of the solution resulting from the addition of 10.0 mL of 0.10 M NaOH to 50.0 mL of 0.10 HCN solution.
What is the freezing point of a solution of 1.17 g of 1-naphthol, C10H8O, dissolved in 2.00 mL of benzene at 20°C? The density of benzene at 20°C is 0.876 g/mL. Kf for benzene is 5.12°C/m, and benzene's normal freezing point is 5.53°C.
In conducting a titration of 75.00mL of a certain triprotic acid with 0.0800 M NaOH the following information was recorded. a. the first equivalence point was observed at pH 3.96 after the addition of 12.4 mL of NaOH
A buffer solution with a pH of 5.28 has a molar ratio of anion to acid of 3.40. Calculate the equilibrium dissociation constant (Ka).
How many grams of iron are needed to produce 2.85 L of hydrogen gas according to the following reaction at 25oC and 1 atm
At 1 atm, how much energy is required to heat 63.0 g of H2O(s) at -24.0 °C to H2O(g) at 143.0 °C
Calculate DG for a voltaic cell with E= +0.24V if the overall reaction involves a 3 electron reduction.
Suppose 50.00mL of a water sample requires 22.30mL of a 0.1222 M EDTA solution to titrate to the Cal-Red endpoint, define how many mg of Ca are present in the sample
How many moles of HF (ka= 6.8 X 10^-4) must be present in 0.200L to form a solution with a pH of 3.25
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