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Consider the addition of 22.59 mL of 0.1643 M aqueous HCl to 19.01 mL of 0.1558 M aqueous NaOH at 25°C. Assuming the volumes are additive, what is pOH of the resulting solution?
Consider the addition of 18.45 mL of 0.2289 M aqueous HCl to 30.49 mL of 0.2875 M aqueous NaOH at 25°C. Assuming the volumes are additive, what is the molarity of the OH- ions in the resulting solution?
Consider the addition of 19.96 mL of 0.1672 M aqueous HCl to 20.59 mL of 0.3168 M aqueous NaOH at 25°C. Assuming the volumes are additive, what is pH of the resulting solution?
Consider the addition of 36.59 mL of 0.1031 M aqueous HCl to 17.48 mL of 0.1364 M aqueous NaOH at 25°C. Assuming the volumes are additive, what is the molarity of the H+ ions in the resulting solution?
Use the Henderson-Hasselbalch equation to calculate the pH of a solution that is 11.5g of HF and 25.0 g
Describe a procedure that might be used to separate p-dichlorobenzene
Calculate the amounts of Na2HPO4 and NaH2PO4 (in grams) needed to prepare 200 mL of a buffer with pH = 8.25 so that the sum of concentrations
volumetric flask and fill to the mark, what is the concentration of the new solution
The enthalpy of combustion of acetylene C2H2 is C2H2(g) + 5/2O2(g) ->2CO2(g) + H2O(l) H°rxn= -1299 kJ Calculate the enthalpy of formation of acetylene, given the following enthalpies of formation H°f[CO2(g)] = -393.5 kJ/mol ,H°f[H2O(l)] = -285.8 k..
A mixture of gases contains 0.290 mol CH4, 0.240 mol C2H6, and 0.300 mol C3H8. The total pressure is 1.40 atm. Calculate the partial pressure of the gases.
Draw the Lewis structures of the following compounds and find out number of electron groups, number of lone-pairs, geometry of electron
added 5 mL of 0.10 M H2SO4 instead of 5mL 0.10 M of HCl calculate the ph of the solution using henderson-hasselbalch
a temperature of 37 degrees Celcius were heated to a temperature of 250 degrees Celcius. If the volume does not change, what is the new pressure of the gas in atmospheres?
A 5.00 mL sample of isopropyl alcohol has a mass of .930 g whe measured at 20 degrees celsius. What is the specific gravity of isopropyl alcohol?
In a typical experiment, you drop a gelatin capsule containing 0.1458 g of an Al-Zn alloy sample into an HCl solution. a) Write the equations that represent the chemical reactions that take place after the capsule has dissolved in HCl?
how many grams of potassium bromide are required to prepare 350 mL of a .200 M solution.
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