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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.
question an aqueous solution of sodium hydroxide is labeled .010 m naoh. what are the molar concentrations of naoh na
when 28.6 kg of fe2o3 react with 17.2 kg of co and 6.3 kg of fe are recovered what is the percent yield for the
Problem- Does anyone know the curved arrow mechanism for 1,1-Dimethyl-3-oxo-2-triazanolate after it resonates to the form where the oxygens both have a negative charge and the Nitrogen bound to Nitorgen and Oxygen has a positive charge reacts with..
Question- If a small cube shape of a diamond was cut and weighs 1.49x10^3 mg, and has sides that cut measure 20.9 mm by 11.1 mm by 12.0 mm, what is the density of the diamond cube in g/cm^3
Determine the bond or Which types and how many atomic orbitals of the central atom mix to form hybrid orbitals in each of the following
Calculate the van't Hoff factor (i) for this solution. 2. Calculate the vapor pressure at 25 ?C of an aqueous solution that is 5.80% NaCl by mass.
the activation energy for the reaction o o3 ? 2o2 is 25 kjmol and the enthalpy change is ?h -388 kjmol. what is the
calculate the deltahrxn for the combustion of glucose c6h12o6 using deltahf values. you will have to calculate the
A piece of chromium metal with a mass of 24.26 g is heated in boiling water to 98.3 degrees celsius and then dropped into a coffee-cup calorimeter
calculate the zero point vibrational energies for -o-h and -o-d bonds.if a reaction of these bonds involves breaking
A solution was prepared by dissolving 0.450 g MgSO4 (FW=120.363g/mol) in 0.500L of water. A 50.0 mL aliquot of this solution consumed 37.60 mL of EDTA solution in a titration. How many milligrams of CaCO3 (FW=100.089g/mol) will react with 1.00 mL ..
How many moles of methanol are present in a 150.0 gram sample of methanol,CH3OH
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