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Consider the titration of 25.0 mL of 0.0500 M HClO4 (perchloric acid, a strong acid) with 0.100 M KOH (a strong base). (a) Find the volume require o reach the equivalence point (complete the reaction). Find the pH after adding the following volumes of KOH: (b) 0.100 mL, (c) 5.00 mL, (d) 10.00 mL, (e) 12.40 mL, (f) 12.50 mL, (g) 12.60 mL, 13.00 mL, (h) 15.00 mL. (i) Plot (graph) the pH vs. volume and indicate the equivalence point from the plot.
Why is it an important concept that atoms generally appear in whole number molar ratios to each other in chemical compounds?
Give two reasons why a 100% yield is not obtained in actual chemical manufacturing processes.
A student carefully diluted 25.0mL of 6M NaOH solution in 475mL of distilled water. Calculate the molarity of the diluted solution of base.
The first ionization energy of Ne is 2081 kJ/mol. The sodium ion Na+ is isoelectronic with Ne, but the ionization energy for Na+ is 4560 kJ/mol. Why is it harder to remove an electron from Na+ than from Ne if they are isoelectronic?
How many grams of potassium nitrate are soluble in 100.0 g of water at 80degrees celcius?
calculate the mass of solid agno3 that can be added to 2.0l of a 0.10 m k2cro4 solution in order to just start
Calculate the boiling point of a solution of 500.0 g of ethylene glycol (C2H6O2) dissolved in 500.0 g of water. Kf = 1.86°C/m and Kb = 0.512°C/m. Use 100°C as the boiling point of water.
A mixture of table salt and ice is used to chill the contents of hand-operated ice-cream makers. What is the melting point of mixture of 2.00 lb of NaCl and 12.00 lbs of ice if exactly half of the ice melts?
Calculate the fraction of atoms in a sample of argon gas at 391 K that have an energy of 12.7 kJ
Which of the following has the greatest buffer capacity. a) 0.40 M CH3COONa/0.20 M CH3COOH, b) 0.40 M CH3COONa/0.60 M CH3COOH, and c) 0.30 M CH3COONa/0.60 M CH2COOH.
to calculate the number of molecules of a gas using ideal gas law and avogadros number.ozone molecules in the
Determine the value of Kc for the following reaction if the equilibrium concentrations are as follows: [N2]eq = 3.6 M, [O2]eq = 4.1 M, [N2O]eq = 3.3 × 10-18 M.
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