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Determine a titration of 33.8mL of 1.64 M solution of aqueous ammonia [Kb(NH3) = 1.8x10-5] with a 1.24 M solution of hydrochloric acid. Calculate-
a) The pH of the aqueous ammonia solution before the titration,
b) The pH of the solution at half-equivalence point,
c) The pH after 7.5mL of HCL was added.
d) The pH of the solution at the equivalence point.
e) The pH of the solution when 1.00mL of the HCl have been added after the equivalence point was reached.
Draw the structural formula & identify the types of bonds in each of the following organic compounds: C5H8 & C4H6
Two moles of a monoatomic gas are contained atpressure 1 atm and teperature 300 k. 34, 166 joules of heat are transfered to the gas as a result the gas expands and does work on the surroundings of 1214 joules.
Hydrocarbons do not dissolve in concentrated sulfuric acid, but methyl benzoate does. Explain this difference and write an equation showing the ions that are produced.
Using your average value for Kc and the concentrations provided for the reactants, determine the absorbance expected when 16.00mL of Fe 3+ (aq) is reacted with 10.00 mL of SCN (aq).
A 13.6 g of copper at 90.5 degrees celsius is dropped into 150.0g of water at 20.0 degrees celsius. The specific heat of copper is 0.385 J/g.K
Explain how many liters of O2 gas measured at 807torr and 250.0°C are formed by the decomposition of 253 g of KClO. You will need a balanced equation where KClO is the reactant. The other product is KCl.
To determine the freezing points of distilled water, 1m glucose, 1m NaCl, 1m CaCl2. Use the freezing point of the pure water as a baseline to determine deltaTf for each of the solutions
A subsequent titration revealed that the concentration of the unknown acid was 0.868 M. What was the concentration of the diluted acid om the Erlenmeyer flask?
Given that aprotic solvents are not practical for unimolecular processes (little if any reaction occurs via a unimolecular pathway) draw the skeletal structure of the major organic substitution product when (2S,6R)-2,6-dibromo-6-methyloctane is tr..
The Kjeldahl was used to analyze 322 ul of a solution containing 54.2 mg protein/ ml. The liberated NH3 was collected in 7.00 ml of 0.04325 M HCl. The remaining acid required 7.62 ml of 0.01221 M NaOH for complete titration. What is the weight per..
What is the smallest amount of CuO (in moles) that would establish the equilibrium?
Suppose that a hotplate transfers 325KJ of energy to 450g of liquid water at 20C. What mass of the water would be boiled away
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