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A titration required 18.38 mL of 0.1574 M NaOH solution. How many moles of NaOH were in this volume?
a mixture of methane and ethane is stored in a container at 294 mmHg. The gases are burned in air to form co2 and h2o. if the pressure of co2 is 357 mmhg measured at the same temperature and volume as the original mixture, calculate the mole fract..
Write the reaction between ferric chloride and lime slurry that results in precipitation of Fe(OH)3. For a dosage of 40 mg/l FeCl3: What is the required stoichiometric addition of lime expressed as CaO?
Explain the chemical reactions that have possibly taken place in his body after the exercise. Discuss possible treatments for the freshman and how the treatment works chemically.
calculate the activation energy for a reaction if its rate constant increases from 10 to 45 s as the temperature increases from 298 to 315 k .
what controls the depth of the CCD the carbonate compensation depth?
The [OH-] = 1.3 x 10^ -6 M for a 0.025 M solution of a weak base. Calculate the value of Kb for this weak base.
In a beaker of boiling water, there are many gas bubbles forming throughtout the liquid. What gas comprises the bubbles.
Calculate the molar mass of a vapor that has a density of 1.88 g/L at 25.2 oC and 710. mmHg.
A weak acid HX has Ka = 1.00×10-6. What would be the pH of a 0.10 M solution of HX in water?
Phosphorus trichloride gas and chlorine gas react to form phosphorus pentachloride gas. A gas vessel is charged with a mixture of PCl3(g) and Cl2(g)
What is the molarity of a solution made by dissolving 68 g of Mg(NO3)2 in enough water to make 450 ml of solution?
a chemical reaction produces 653,550 kJ of energy as heat in 142.3 mins. Calculate the rate of energy transfer in kilojoules per minute.
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