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The carboxylate group of acetic acid has a pKa of about 4.7. In an acetic acid solution in water, approximately what percentage of the acetic acid molecules are protonated and neutral in charge at pH 5.7?
Calculate the percent by weight, mole fraction and mole percent of each component in a mixture consisting 9g of water (H2O), 120g acetic acid(CH3COOH) and 115g of ethyl alcohol (C2H5OH).
Calculate the mass of silver chloride required to plate 135 mg of pure silver. Silver chloride, often used in silver plating, contains 75.27% Ag.
calculate the total heat (in J) needed to convert 20.0g ice at -8.00 c to liquid water at 0.600c? melting point at 1 atm
3NaHCO3 + H3C6H5O7= 3CO2 + 3H2O + Na3C6H5O7 1g of sodium bicarbonate and 1g citric acid are allowed to react. Find the limiting reagent.
2 FeS + 3 N2 → 2 FeN + 2 SN2 This reaction has a 65.0% yield. How much N2 is consumed if 13.6 g of FeN are produced?
Determine the mass of this substance should evaporate in order to freeze 190 grams of water at 25 degree Celsius initially? It is given that the heat of fusion H 2 O= 334 specific heat of H 2 O= 4.18
The specific heat of liquid bromine is 0.226 J/g-K. How much heat (J) is required to raise the temperature of 10.0 mL of bromine from 25.00C to 27.30C? The density of liquid bromine: 3.12 g/mL
Compute the atomic mass of 109Ag if natural abundance of 107Ag is 51.87% & atomic mass =106.905 amu and determine the probability of particle would be located in the range
If 1.500 g of a solute having a molar mass of 125.0 g were dissolved in 35.00g of camphor, what would be the resulting freezing point of the solution.
A gas sample was collected over water at 25.3 degrees Celsius, The total pressure is determined to be 0.97 atm. What is the partial pressure of the gas that was collected?
At 10 degrees, Kc = 56.3 for the reaction below. H2 + Cl2 --> HCl
Suppose that you wished to prepare copper(II) carbonate by a precipitation reaction involving Cu2+ and CO32-. Select all of the pairs of reactants that could be used as solutes
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