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53.576g of MgSO4 2H2O are dissolved in 250.00 mL of 1.50 M Ba(NO3)2 solution to produce barium sulfate precipitate. How many grams of barium sulfate were formed after the reaction?
What is the minimum concentration of ammonia that should dissolve AgBr to produce a 0.01 M Ag(NH3)2+ solution
Calculate the ion mobility of 100nt long DNA molecules and single nucleotide molecules. Correlate this to the conductivity of the solution.
A buffer is created by mixing equal concentration is NH4+ and NH3. Calculate the volume of both solutions needed to create a buffer of pH = 8.75 with a total volume of 100ml
A bag of potato chips contains 580 mL of air at 25°C and a pressure of 755 mm Hg. Assuming the bag does not break, what will be its volume at the top of a mountain
What is the pH of Sodium Acetate solution before the HCL is added and after the HCL is added?
Which compound is most likely to be soluble in hexane (C6H14) and why. A) acetone (CH3COCH3) B) benzene (C6H12) C) water D) chloroform (CHCl3) E) ethyl alcohol (CH3CH2OH)
If you wanted to make a 3 liter solution of 500 mM formic acid buffer at pH 3.9 how many grams each of sodium formate (MW=68g/mol) and formic acid (MW=46g/mol) would you add
if 6.73 g of Na2CO3 is dissolved in enough water to make 250 ml of solution, what is the molarity of the sodiam carbonate?
How many grams of MgO are produced when 40.0 g of O2 react completely with Mg?
To determine the molecular formula of a compound - gas was mixed with calcium chloride solution,
Consider two hypothetical elements, W and Z. Element W has an electron affinity of ?150 kJ/mol, and element Z has an electron affinity of ?38 kJ/mol.
increasing orbital energy as a string without blank space between orbitals. ?A) Zn^2+ Determine which have noble-gas configurations out of the 6 ions listed above.
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