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write the formula of the conjugate acid for each of the following bases: a)SO4^2- b)CN^- c)CH3-CH2-COO^- d)ClO2^- e)HS^-
Then rotovap until crystallized and add 20 mL cold H2O, stir +10% HCl to neutralize. Filter and wash.
A nitric acid solution containing 71% HNO3 (by mass) has a density of 1.42g/mL. how many moles of HNO3 are present in 1.00L of this solution.
Why is water a reactant in the fermentationof sucrose? Enter the solubility-product expression
What is the pH at the half-stoichiometric point (that is, what is the pH when you have added 50% of the total volume of base required to react with all of the acid originally present?)
Calculate the amount of heat required to completely sublime 18.0g of solid dry ice (CO2 ) at its sublimation temperature
1. what mass of phosphorous trichloride forms when 125g of P4(S) reacts with 323g of chlorine gas?
calculate the energy absorbed when 2.67 moles of ethyl ether undergo combustion: CH3CH2OCH2CH3(l) + 6O2(g)-> 4CO2(g)+5H2O(l) delta H=+1604 kJ/mol
Benzoic acid can be extracted from an ether solution using an aqueous solution of sodium bicarbonate.
What is mass percent (%w/w) of H2SO4 in this solution? (b) Would the mass percent (%w/w) of H2SO4 change with changes in temperature? Explain.
a 12.09-g sample of solid sodium bicarbonate completely decomposes into solid sodium hydroxide and carbon dioxide gas when heated.
The equilibrium constant is 100. Calculate the concentrations of O2 present at equilibrium
If the BaSO4 residue was baked in an oven at 100C for several hours rather than air drying, what effect would this have on its mass and how would the initial concentration of H2SO4 be affected
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