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A solution is tested with a series of indicators. The solution turns blue when bromcresol green is added, it turns purple when bromcresol purple is added, and is colorless when phenolphthalein is added. What is the estimated pH of this solution?
It requires 20.65 mL of 0.3000 M NaOH solution to titrate both acidic protons in 40.00 mL of the tartaric acid solution Write the net ionic equation.
what is the change in enthalpy for 2.854 moles of the liquid?
Write the structural formula of the main organic product for the following reaction between an alcohol, tosyl chloride and then a nucleophile
A 125 lb patient is to receive a drug at a rate of 0.300 mg per 1.00 kg of body weight. If the drug is supplied as a solution containing 5.00 mg/mL, how many milliliters of drug solution should the patient receive
A buffer is formed by mixing 100 mL of 0.1 M NH4Cl with 50 mL of 0.3 M NH3. To this solution 12 mL of 0.1 M NaOH is added. What is the approximate pH of the new solution after neutralization? Assume a Kb of 1.8 × 10^-5 for the weak base.
calculate the difference in mass that is hold by a 500.0mL flask at a temperature of 0.0°C from that at temperature of 20.0 °C? (you can assume the volume of the sample at 0.0 °C temperature =volume of the sample at 20.0°C)
Determine the half-life of benzoyl peroxide in benzene at 60°C. By how much will the initiator concentration change after 90 minutes of polymerization? Assume kd=2.0x10^-6 L/mol-s
Considering which elements are being oxidized and reduced, determine how many moles of electrons are transferred between the elements being oxidized and reduced
What is the vapor pressure of SiCl4(in mm Hg ) at 34.5C. The vapor pressure of SiCl4 is 100mm Hg at 5.4C, and Delta Hvap = 30.2 kJ/mol
metallic aluminum reacts with mno2 at elevated temperatures to form manganese metal and aluminum oxide. a mixture of
calculate the heat energy released when 15.1g of liquid mercury at 25 degrees C is converted to solid mercury at its melting point
Which process will likely increase the solubility of solid KCl in water? Stirring the mixture. Increasing the surface area of KCL * Raising the temperature of the mixture *lowering the temperature of the mixture
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