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3-nitrophthalhydrazide and luminol that are consistent with reduction of the nitro function to an amino group in preparation of luminol
Determine what would the pressure be if the volume of this sample gas is decreased to 5.38 Litre also state that which law of gas is used in this process?
What would you weigh if you have pure anhydrous sodium sulfate available instead of the pentahydrate material
Alum precipitates to form aluminum hydroxide floc in water at near neutral pH. what is the balanced chemical equation for this process
An element has two common isotopes. 98.89% of its atoms have an atomic mass of 12.09 amu, whereas the other 1.11% have an atomic mass of 13.10 amu. Using the isotopic composition provided, calculate the average atomic mass of the element.
The pKa of acetic acid, HC2H3O2, is 4.76. A buffer solution was made using an unspecified amount of acetic acid and 0.30 mol of NaC2H3O2 in enough water to make 1.50 L of solution. Its pH was measured as 4.50 on a meter.
calculate the minimum number of grams of propane that must be combusted to provide the energy necessary to convert 5.35
At 25ºC the solubility product constant, Ksp, for magnesium phosphate, Mg3(PO4)2, is 1.0´10-24. The solubility product constant for magnesium fluoride, MgF2, is 7.0´10-11.
copper (II) iodide and ammonium acetate are soluble salts E. silver bromide and calcium acetate are insoluble salts F. nickel (II) bicarbonate and lead (II) sulfate are insoluble salts G. barium bromide and barium sulfate are insoluble salts H. al..
A 45.0-rm mL sample of this glucose solution was diluted to 0.500 rm L. How many grams of glucose are in 100. rm mL of the final solution?
What concentration of Ca2+ must be added to 0.010 M oxalate (C2O^-2 4) to precipitate 99.0% of the oxalate.
Calculate the energy released as heat when 26.83 g of Cu2O(s) undergo oxidation at constant pressure.
Describe the apparent relationship between H30+ and OH- concentrations when an endpoint is reached in an acid-base titration.
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