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Help Experiment 29 Post lab question #2 The solid KIO3 is diluted shy of the 100mL mark in the volumetric flask. does this technique error result in a reported molar concentration of KIO3 that is too high or too low? Explain. As a result will the reported molar concentration of the standardized Na2S2O3 solution be too high, too low, or unaffected? Explain
The following isotopic cluster was observed in a mass-spectrum of a parent peak of a halogenated compound:
If the temperature in the laboratory is 22.3oC and the atmospheric pressure is 0.931 atm, what volume would be occupied by the carbon dioxide produced in this reaction (in cm3)?
What is the value of K_sp for tin(II) sulfide, given that its solubility
Our simple pH meter that we have used before works on the principles deiscussed on page 829. What cell voltage would you expect from the pH probe if it is place into a beaker containing 50 mL of 1M HCl diluted with 50 mL of distilled water
Calculate the approximate molarity of this solution from the volume, percent composition, and density.
A sample of pure NO2 is heated to 334 degree C at which temperature it partially dissociates according to the equation 2NO2(g)-->2NO(g)+O2(g)
A battery is constructed based on the oxidation of magnesium and the reduction of Cu^2+. The initial concentrations of Mg^2+ and Cu^2+ are 1.2×10?4M and 1.6M, respectively, in 1.0-liter half-cells.
Calculate the rate of water removal from the condenser, the rate of dehumidified (1.50% water) air delivered to the house, and the flow rate and composition of the humid air entering the condenser
For a certain glass electrode, the selectivity coefficient for Na+ relative to H+ is 1.0E-12. The electrode is calibrated with NBS standard buffers 6.86 and 9.18,
Does pH have an effect on the cell potential (Ecell) for the following oxidation-reduction reaction? 5Fe^2+(aq) + MnO4^-(aq) + 8H^+(aq) ---> 5Fe^3+(aq) + Mn^2+(aq) + 4H20(l)
A chemistry handbook lists the solubility of sodium Iodide as 184 grams per 100mL of water at 25 degrees celsius. How many moles of NaI can be dissolved in 100mL of water at 25 degrees celsius?
If 405 mL of a gas at 66 degrees Celsius and 595 mm Hg weighs 1.495g, what is the molecular weight of the gas?
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