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Calculate the inital pH of buffers A, B, & C using the Henderson-Hasselbach equation.Buffer A = 40 ml of .100M HA (Potassium Hydrogen Phthalate pKa 5.41) + 20ml of .100M NaOH + 20ml of H20
A mixture initially contains A,B, and C in the following concentrations: A= 0.650 M, B= 0.800M , and C= 0.550M . The following reaction occurs and equilibrium is established
The molar heat of fusion of water is 6.02 KJ/mol. Calculate the energy required to melt 16.6g of water.
draw the molecule by placing atoms on a grid and connect with bonds for when the cyclopentane is exposed to Br2 in presence of light.
Estimate the triple point pressure and teperature of water, given that the standard enthalpies of fusion and vaporization are 6008 J/mol and 43990 J/g at 273.15 K and 298.15 K, repectively
What is the pH at the point during a titration when 22 mL of 0.200 M HCl has been added to 33 mL of 0.0500 M NH3 solution? HCl is strong acid, Kb = 1.8 × 10-5 for NH3. Answer in units of pH
How many grams of CO2 are produced by the complete combustion of 2.00g of C8H18?
Calculate the number of grams of sulfuric acid present in the mixture after the reaction is complete.
which had been effectively diluted to a volume of 200mL? b) how many grams of Cu were in the sample? c) how many grams of Cl were in the sample? How many moles? d) What is the formula of the copper chloride compound?
If 3.00 moles of ZnS are combined with 4.00 moles of O2 how many moles of ZnO can be produced and how many moles of the excess reactant will be left over?
Provide step-by-step mechanism for the rxn (1S,2R)-2-methylcyclopentanol with 85% H3PO4 at 170 degrees C.
You mix 50 ml of a weak monoprotic acid with 50 ml of NaOH solution in a coffee cup calorimeter. Both solutions and the calorimeter were initially at 22 C.
Hydrogen peroxide decomposes to give water and oxygen gas according to the equation below. If 3.0 moles of hydrogen peroxide decompose
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