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Problem- Amount of cadmium in a sample is determined by AAS. The standard solutions produce a straight calibration curve with a slope of .1024 + .0082 abs units/ppm. And a y intercepts of .0105 + .0076 abs units. What is the uncertainty in the concentration of the unknown?
Explicate the each step. Explicate the process and each step.
1. provide proper iupac names.2. draw structure of strongest acid in the table provided.3. give products. show
A buffer is prepared by mising 204mL of 0.452M HCl and 0.500l of 0.400M sodium acetate Ka=1.8x10^-5 a) what is the pH, b) how many grams of KOH must be added to 0.500l of buffer to change the PH by 0.15units
Calculate the pH at the equivalence point in titrating 0.010 M solutions of each of the following with 0.081 M NaOH. (b) hypochlorous acid (HClO), Ka = 3e-08 pH = _?_ It's not 8.3
How many mole of sodium hydroxide is contained in a lye solution in which 130 grams of sodium hydroxide
A sample of 0.0020 mole of HCl is dissolved in water to make a 2000mL solution. Calculate the molarity of the HCl solution, the {H3O}, and the pH.
What is the relationship between the standard cell potentials, E, for the following two galvanic cell reactions?
A sample of iron has a mass of 257.0 lb and a volume of 0.523 ft3. What is its specific gravity? and What are the units of specific gravity?
For the reaction below, Kc=4.50x10^11 at 25oC. A(g) + 2B(g) C(g) In an experiment, 1.00 mol A and 1.00 mol B are combined in a 1.0L reaction vessel. What are the equilibrium concentrations of A, B and C
The calorimeter (excluding the water) has a heat capacity of 510J/K. Compute the molar heat of combustion for compound X (Mx = 90.00g/mol).
How much heat is produced in burning 5 mol of C2H2 under standard conditions if both reactants and products are brought to 298 K
which of the following accounts for the unusually high boiling point of water? the density of water, the hydrogen bonds in water
To find the pKa of X-281, you prepare a 0.087M test solution of X-281. The pH of the solution is determined to be 2.40. What is the pKa of X-281?
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