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Suppose 1.12g of barium acetate is dissolved in 100.mL of a 63.0mM aqueous solution of sodium chromate. Calculate the final molarity of barium cation in the solution. You can assume the volume of the solution doesn't change when the barium acetate is dissolved in it. Be sure your answer has the correct number of significant digits.
Write out the electron configuration for each of the following nonmetal ions.
assume that an escape velocity is 50 ms for an asteroid x but we also have asteroid y that has twice the radius and
An equilibrium mixture of propanoic acid (propionic acid), CH3CH2COOH, and its conjugate base has a pH of 4.87. Draw the form that predominates after H3O is removed from the equilibrium mixture
For carbon tetrachloride, the boiling point constant is 5.03°C · kg/mol, and the boiling point of pure carbon tetrachloride is 76.50°C.
HClO is a weak acid (Ka = 4.0 × 10-8) and so the salt NaClO acts as a weak base. What is the pH of a solution that is 0.031 M in NaClO
A typical adult bdy contais 6 liters of blood. The hemoglobin content of blood is about 15.5G /100mL. The approximately molecular weight of hemoglobin is 64500 g/mol. How many moles of hemoglobin are present in a typical adult
Draw the expected titration curve for the titration of methylamine (a weak base) with hydrochloric acid? What would be the nature of the salt produced at equivalence point of this titration?
The balanced chemical equation is N2+O2 2NO.If more NO is added, bringing its concentration to 0.800 M, what will the final concentration of NO be after equilibrium is re-established
Question- Hydrogen gas and iodine gas form hydrogen iodide. If .500 mol H2 and 1.00 mol I2 are placed in a closed 10.0 L vessel, what is the mole fraction of HI in the mixture when equilibrium is reached at 205 degrees C? Use appendix C and any re..
A semiconductor of n-type is know to have an electron concentration of 3 x 10^18 m ^3 if the electron drift velocity is 100 m/s in an electric field of 500 V/m, calculate the conductivity of this material.
How much heat is absorbed by nickel when 500.0 g nickel is warmed from 22.4 deg C to 58.4 deg C? [The specific heat of nickel is 0.444 J/(g.deg C.)]
estimating the thickness of a membrane by using bond distance.the carbon-carbon bond distance for single-bonded carbons
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