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1. a) Write the dissociation equation for the dissociation of sodium carbonate NazCO3(aq)
b) What is the amount concentration of sodium ions and carbonate ions in a 0.144 mol/L solution of sodium carbonate?
2.
a) Calculate the pH of a 0.0026 mol/L solution of hydrochloric acid.
b) A solution has a pOH = 5.25. Calculate the hydroxide ion concentration of this solution.
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A gaseous mixture containing 0.160 mol fraction of carbon tetrachloride (CCl4) and 0.840 mol fraction of dry air is initially at 57.0°C and 1133 mmHg. If this mixture is cooled at a constant pressure, at what temperature does the CCl4 first start ..
Explain what is the dominant form of alkalinity in natural water at pH 7. Explain what are the forms present at pH 10.5? Total alkalinity = 100mg/l CaCO3. Explain mathematically not from graph.
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