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The soda ash in your analysis was assumed to be pure Na2CO3. If some of the Na2Co3 is replaced by an equal number of formula weights of NaHCO3, how would the volume of acid change from
(a) The starting point to the phenolphthalein end point?
(b) The phenolphthalein end point to the bromocresol green end point?
(c) The starting point to the bromocresol green end point?
For the reaction A-----)products successive half-lives are observed to be 10.0, 20.0 and 40.0 min for an experiment in which [A]o= 0.10 M Calculate the concentration of A at the following times.
What is the hydronium-ion concentration of a 5.23 10-4 M solution of p-bromobenzoic acid, BrC6H4COOH, for which Ka = 1.00 10-4
If the step for digesting the precipitate were omitted, will the reported "percent limiting reactant" in the salt mixture be too high, too low, or unaffected
According to the delocalized molecular-orbital theory of metals, in what sense do we say that the entire piece of metal
What volume of .250 M NaOH is required to neutralize a 10mL sample of .750 M HCl.
How is the vapor pressure of a liquid at a given temperature related to the strength of intermolecular forces
Ethanethiol is more soluble in water because sulfer has agreater electronegativity value than oxygen. Ethanethiol is more soluble in water because it has a lower molecular mass than 1-propanol.
How much PV work is done, and what is the value of ?E for the reaction of .50 mol of H2 with .25 mol of O2 at atmpospheric pressure if the volume change is -5.6L
the activation energy for the following reaction is 60. kjmol.sn2 2co3 rarr sn4 2co2by what factor how many times
What is the absolute humidity of the cooled air? and What is the minimum mass flow rate of water into the swamp cooler?
Calculate the molar concentration of an aqueous solution containing 10.25 g of calcium nitrate in 850.mL.
Describe the three types of models (layer sequence drawings, computer graphics, balls and sticks) used for visualizing the three dimensional structure of unit cells
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