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A student performing a titration added 40.35mL of 0.250 M NaOH to completely neutralize a solution of HCl.how many moles of HCl were present prior to titration with NaOH.
A hydrogen molecule in it's ground vibrational state with KE=10eV coollides with heavy atom metal surface and no energy is transferred to the surface. The surface can be modeled as an infinite potential wall.
2-iodo-4-methylpentane was refluxed for an hour in the presence of sodium isopropoxide. Name and draw the product(s) of this reaction clearly showing the stereoselectivity and regioselectivity of the reaction.
A 32.22 g sample of a metal that looks like aluminum is heated to 99.8 C in hot water. The metal is then quickly transferred into exactly 50.0 ml of water at 22.9 C in a calorimeter
The rate constant for a reaction at 40.0 degrees Celsius is exactly 3 times that of 20.0 degrees Celsius. Calculate the Arrhenius energy of activation for the reaction.
What is the pH (to nearest 0.01 pH unit) of a solution prepared by mixing 52.0 mL of 0.125 M HF and 78.0 mL of 0.0465 M NaOH
Calculate the pH for each of the following cases in the titration of 50.0 mL of 0.150 M HClO(aq) with 0.150 M KOH(aq). The ionization constant for HClO is 4.0*10^-8
nbspa solution of 6.05 m of an acid hx has a density 0.892 gml. molar mass of the acid hx 2.00 gmol. find out the
The mole fraction of A in the vapor is found to be 0.67. What is the mole fraction of A in the solution?
Write down the electron configurations for C2 and F2. What is the bond order for each? Which one is likely to have larger bond dissociation energy.
Starting with the supernatant collected after the initial crystallization, suggest a procedure to isolate and purify the R-(+)-phenylethylamine enantiomer.
Given the following equation, how many grams of PbCO3 will dissolve when 5.0 L of 1.50 M H+ is added to 6.00 g of PbCO3
how can we calculate the weight of CaCO3 per 10^6 ml unknown sample.the weight of CaCO3 per 25 ml of unknown sample is 5.71*10^-3
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