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A mixture is 10 mole % ethyl alcohol, 75 mole % ethyl acetate and 15 mole % acetic acid. calculate the mass fractions of each compound. what is the average molecular weight of the mixture? what would be the mass (kg) of a sample containing 25 kmol of ethyl acetate?
What is the minimum flow rate of water (? = 0.990 g/mL) required to scrub out 90.0% of the incoming NH3? What is the mole fraction of NH3 in the scrubbed waste gas stream?
The mass spectrum of 1-ethyl-1-methylcyclohexane shows many fragments, with two in very large abundance. One appears at m/z = 111 and the other appears at m/z = 97.
A wooden artifact from a Chinese temple has a 14C activity of 34.3 counts per minute as compared with an activity of 58.2 counts per minute for a standard of zero age. From the half-life for 14Cdecay, 5715 yr determine the age of the artifact.
Starch and cellulose are both made of chains of glucose units. The human body can digest starch but why can it not digest cellulose
After the reaction has reached equilibrium, the absorbance of the product C is measured and its concentration is determined to be 0.00745 M. Calculate the equilibrium constant for this reaction.
Esters and amides can be most easily and conveniently prepared by nucleophilic substitution reactions on: (select one or more) alcohols carboxylates acyl chlorides carboxylic acids amines acid anhydrides another amides
2NO2(g)has come to equilibrium, the concentration of NO2 is 2.2 x 10-3 mol/L. Calculate the molar concentration of O2 at equilibrium.
The reaction between ethyl iodide and hydroxide ion in ethanol (c2h5oh) solution, c2h5oh + oh --> c2h5oh + I, has an activation energy of 86.8 kj/mol and a frequency factor of 2.1 x 10^ 11
65.50 ml of 0.161 m hf is titrated with 0.1200 m naoh. what is thenbsp ph after 65.50 ml of base have been added? ka
If 69.5 kJ of heat is applied to a 1032 g block of metal, the temperature of the metal increases by 11.4°C. Calculate the specific heat capacity of the metal in J/g°C.
1. as we know a homes used hot water tank and every hot water tank is an anodecalled a dip tube with the time this
Calculate the molar solubility of AgCl in a solution made by dissolving 10.0 g of CaCl2 in 5.50 L of solution.
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