Molecular weight of acetic acid

The true molecular weight of acetic acid is 60.05 g/mol. Acetic acid is a weak acid and dissociates very slightly in water the van t Hoff factor, i, is then only slightly larger than 1. The behavior of acetic acid approximates that of a nonelectrolyte in water. 

I litre of 0.1 M sodium acetate buffer with a pH 4.0 is required. Molecular weight of acetic acid = 60 there litre of 0.1 M buffer there will be 6 g of acetic acid. To prepare the buffer 6 g of acetic acid are weighed a made up to ca 500 ml with water. The pH of the acetic acid solution is adjusted to 4.0 by addition of 2 M hydroxide solution using a pH meter to monitor the pH. The solution is then made up to 1 lifre with watei Calculate the concentration of acetate and acetic acid in the buffer at pH 4.0. 

N = 11.0 with true molecular weight of acetic acid,... 

From the original composition of the mixture, its density, and the molecular weights of acetic acid, ethanol and water which are 60, 46 and 18 respectively, CM = 4.2 kmol/m3 Cso = 10.9 kmol/m3 C/n — 16.4 kmol/m3. Thus, from equation 1.25, t, in seconds is given by ... 

Reaction temperature Acetic acid equivalent in AO Molecular weight of acetic acid Heat capacity of reacting mixture Heat of reaction Conversion Average feed rate AO Density... 

Plrobleni 18.1 At 110 and 454 mm pressure, 0.11 g acetic acid vapor occupies 63.7 cc at 156 and 458 mm, 0.081 g occupies 66.4 cc. Calculate the molecular weight of acetic acid in the vapor phase at each temperature. How do you interpret these results ... 

Formula weight (molecular weight) of acetic acid (vinegar) = 60.0 amu... 

Experiments show that the molecular weight of acetic acid in the vapor state (just above its boiling point) is approximately 120. Explain the discrepancy between this experimental value and the true value of approximately 60. 

In Example 3.9, we found the percentage composition of acetic acid to be 39.9% C, 6.7% H, and 53.4% O. Determine the empirical formula. The molecular weight of acetic acid was determined by experiment to be 60.0 amu. What is its molecular formula ... 

Molecular weight. A solution of 5.00 g acetic acid in 100 g benzene freezes at 3.38 C. A solution of 5.00 g acetic acid in 100 g water freezes at —1.49 C. Find the molecular weight of acetic acid from each of these data. What can you conclude about the state of the acetic acid molecules dissolved in each of these solvents ... 

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