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50.0 ml of 0.100M hydrofluoric is titrated with 0.100M NaOH. Determine the pH of the acid solution before the titration begins and the pH at the equivalence point when 50.0 mL of the NaOH has been added. The Ka of HF is 7.2*10^-4
The heat of reaction for the combustion of cyclohexane, C6H12, is 936.8 kcal/mol. What is the heat of combustion for cyclohexane in kcal/gram?
how many moles of HNO3 are present in 33.0 mL of a 4.70M solution ?
use a solid line to represent the correct calibration line and a dotted line for the line with the systematic error.) Also discuss the advantages and disadvantages of spectral methods of analysis.
how many moles of glucose, C6H12O6 can be burned when 60.0 mol of O2 is available?
What is the most likely reason OSHA requires ammonium nitrate to be segregated for sulfur or finely divided metals? Explain your answer.
The white precipitate obtained when cold HCl was added to an unknown solution was completely insoluble in both hot water and NH4OH
The precipitate that forms in the qualitative analysis of the chloride ions is AgCl. Calculate the mass of AgCl that should be produced when an excess of AgNO3 is reacted with 0.1900 g of [Co(NH3)5Cl]Cl2.
Draw the molecule by placing atoms on the grid and connecting them with bonds. Show the formal charges of all atoms in the correct structure. Include all lone pairs of electrons.
Determine the change in internal energy of the gas express your Answer in units of kJ and operates for nine minutes to heat the gas in a cylinder
Iron (II) ions catalyze the oxidation of luminol. The intensity of the resulting chemiluminescence has been shown to increase linearly with iron (ii) concentration from 10^-10 to 10^-8 M.
Using a solution containing 0.302 grams of an antibiotic has an osmotic pressure of 8.34 mmHg At 23.6°C, 0.500 L. calculate its molecular mass.
calculate the molar solubility of silver iodide in 3.0 M NH3. overall formation constant for Ag(NH3)2" is 1.7 x 10^7
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