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Calculate the pH of each of the following solutions.? (a) 0.100 M propanoic acid (HC3H5O2, Ka = 1.3 x 10^-5) (b) 0.100 M sodium propanoate (NaC3H5O2) (c) pure H2O (d) 0.100 M HC3H5O2 and 0.100 M NaC3H5O2 Calculate the pH after 0.029 mol HCl is added to 1.00 L of each of the four solutions.
Give the products (if any) expected from the treatment of each of the following compounds with ozone followed by aqueous hydrogen peroxide. Do not draw any byproducts.
Calculate the solubility of zinc hydroxide Zn(OH)2 in 1.10 M NaOH. Ksp=3.0x10^-16 for Zn(OH)2 Kf=3.0x10^15 for Zn(OH)4^-2
How many grams of sodium formate, NaCHO2, would have to be dissolved in 1.3 L of 0.45 M formic acid (pKa 3.74) to make the solution a buffer for pH 3.75
One mole of N2, one mole of O2, and 0.5 mol of H2 are at 25 oC and 1 atm. The final total pressure of the mixture is 1 atm. Calculate delta_S on forming the mixture.
A sample of ethane vapor is added to the same flask until the total pressure is 1.45 atm . What is the partial pressure of argon,PAr , in the flask?
Aldehydes react with KCN and HCN to form cyanohydrins. The nitrile may be further converted to a carboxylic acid or -CH2NH2. Carry out the synthesis of a cynohydrin from cyclopentanecarboxaldehyde and convert it to a carboxylic acid and a -CH2NH2.
An ideal gas is contained in a cylinder with a volume of 5.0 102 mL at a temperature of 30°C and a pressure of 720. torr. The gas is then compressed to a volume of 25 mL, and the temperature is raised to 794.°C. What is the new pressure of the gas..
Calculate the energy and the wavelength, in nanometers, of light emitted when an electron in an excited hydrogen atom falls from the n=3 level to the n = 1 level.
Organic Oxygen Compounds, What are the possible isomers for Methanol, 1-Propanol, & 1-Pentanol?
A procedure was performed on a 0.49 g sample of copper oxide and 0.40 g of dry copper metal was recovered. Show all the steps solving for the empirical formula of copper oxide and keep significant figures in mind.
A flask contains 0.500 mol of liquid bromine, rm Br_2. Determine the number of bromine molecules present in the flask.
How many kilojoules a) are required to raise the temperature of 33.4 g CH3CH2OH(l) from 19.6 to 49.8 C b) must be removed from a 325 g sample of CH3(CH2)6CH3(l) to lower the samples temperature from 82.4 to 31.6
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