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An unknown metal is found to be arranged in an fcc structure. The density of the metal is 8.91g/cm3 and the edge cell length is 352.4pm find out the molar mass of the metal. Define what is the metal?
Acetic acid has a pKa of 4.74. A sodium acetate/ acetic acid buffer (NaCH3CO2/CH3CO2H) with a pH of 4.74 can be made by: Combining 0.10 mole of CH3CO2H with 0.10 mole of NaCH3CO2 in water
what are the equilibrium concentrations of [H2C2O4],[HC2O4-1],[C2O4-2] and [H+] in a 0.200 M solution of oxalic acid (H2C2O4)
How many mL of water (density = .997g/ml at 25 degree C) are needed to dissolve 10.0g of NH4NO3 in order to prepare a .100m ammonium nitrate solution?
To obtain a 18.0% (w/v) solution of copper sulfate (CuSO4), M.W = 160) when only the crystalline salt is available (CuSO4 x 5H2O, M.W. = 250) what should the crystalline salt be weight to prepare 450.0 mL of solution
What is the volume percent of a solution prepared by dissolving 34 g of NaOH in enough water to make a final volume of 120 mL? Show your work. part b: How many mL of a 10% solution can be made from the solution in part a
Complete and balance the following redox equation using the smallest whole-number coefficients. What is the coefficient of Sn in the balanced equation
a how many grams of na2so4 are there in 15 ml of 0.50 m na2so4? b how many milliliters of 0.50 m na2so4 solution are
A solution is 0.034M in Na2SO4 and 0.035M in Na2CrO4. Solid Pb(NO3)2 is added without changing the volume of the solution.
Considering the balanced chemical equation at the beginning of Section 4.2, why is it incorrect to say that if we burn 2 kg of octane, we would get 16 kg of CO2 as a product
the quantity 432 mg of a monoamino monocarboxylic amino acid isobserved to consume 7.39 meq of acid and base in the
commercial grade hcl solutions are typically 39.0 by mass hcl in water. determine the molality and molarity of the hcl
A buffer is prepared by dissolving .0250 mol of sodium nitrite in 500 ml of 0.0329 M nitrous acid. Assume no volume change after NaNO3 is dissolved. calculate the pH of this buffer.
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