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You have 0.3991 g of an unknown monoprotic acid, HA which reacts with NaOH according to the balanced equation
HA + NaOH ® NaA + H2O
If 35.30 mL of 0.1086 M NaOH is needed to titrate the acid to the equivalence point what is the molar mass of the acid?
A solution of vinegar has a 0.81M the manufacturer claims that the vinegar has 5% acetic acid by weight. the denisty is 1g/ml is the manufacturer correct
at 218degc kc 1.2 10-4 for the equilibrium shown below.nh4hss nh3g h2sgcalculate the equilibrium concentration of
Calculate the number of moles of B at each time in the table. 0 s mol 40 s mol 80 s mol 120 s mol 160 s mol (b) Calculate the average rate of disappearance of A for each 40 s interval, in units of mol/s. 0 - 40 s mol/s 40 - 80 s mol/s 80 - 120 s m..
how many moles of calcium ions are in 1L of a 2.0M solution of CaCl2
The ksp for Al(OH)3 is 1.9*10^-33. what is the pH of a sauturated solution of Al(OH)3. ignore any hydrolysis
An interference filter is to be constructed for isolation of nitrobenzene absorption band at 1537 cm^-1 if it is to be based on first order interference, what should be the thickness of the dielectric layer
A 100.0-mL buffer solution is 0.175M in HCIO and 0.150M in NaCIO .What is the pH after addition of 150.0mL of HBr?
Use the activity series to determine which of the following ions will be reduced when an aluminum strip is placed in an aqueous solution of that ion: a)Fe^2+(aq) b)Au^3+(aq) c)Zn^2+(aq) d)H^+(aq) e)Pb^2+(aq)
Hydrogen bonding between polyamide chains plays an important role in determining the properties of a nylon such as nylon 6,6. Draw the structural formulas for two adjacent chains of nylon 6,6 and show where hydrogen-bonding interactions could occu..
For the reaction aA ? Products, use the following choices? a) zero order in A b) first order in A c) second order in A d) a, b, c e) none of the above so what is (1) [A] is constant and (2) the rate is constant over time
in a laboratory practical exam students were asked to prepare an aqueous buffer solution having a ph close to 9. which
What is the rate of formation of carbon dioxide over the specified time period in this reaction
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