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Two beakers are places in a closed container beaker A initially contains 0.15 mole of naphthalene C10H8 in 100g benzene c6h6, and beaker b contains 31g of unknown compound dissolved in 100g benzene. At equilibrium,beaker a lost 7.0g. Define what will happen for the system to be equilibrium as well as compute the molar mass of the unknown and state any assumption
Which of the following materials will react with an acid to produce a gas. A) NaOH(aq) B) Na2CO3(aq) C) both (a) and (b) D) neither (a) nor (b) Which of the following materials will react with an acid to produce a gas
Draw a structure for a compound that meets the following description: C4H8O with IR absorption at 3400 cm-1 and no absorption in the 1640-1680 cm-1 range
A vertical force of 7 N (in the negative z direction) is required to hold the deflector in place. Determine the mass (kg) of the deflector. Assume the velocity of the water remains constant.
The equilibrium constant of a reaction is found to fit the expression ln K = A + B/T + C/T^3 between 400 K and 500 K with A = -2.04, B = -1176 K, and C = 2.1 x 10^7 K^3. Calculate the standard reaction enthalpy and standard reaction entropy at 450..
Xanthine is a biological precursor of uric acid. What can you say about the molar absorptivity of xanthine if absorbance measurements of 250
A 1.000-g sample of stannous fluoride gives a 1.175-g precipitate of stannous phosphate. Compute the theoretical yield and percent yield of Sn3(PO4)2
When ethyl ether is heated with excess HI for several hours, the only organic product obtained is ethyl iodide
Show the overall reaction of racemic 3-bromohexane from (E)-3-hexene by entering the structures of the products and reactants in the template provided. (E)-3-hexene (S)-3-bromohexane (R)-3-bromohexane
Compute the equilibrium constant (keq) for the reaction of equimolar amounts of acetophenone as well as sodium hydroxide to generate the enolate. 2.905 g of acetophenone and 15mL of sodium hydroxide were used
a 155ml volume of oxygen gas is collected over water at 23 degrees celsius and a barometric pressure of 770mm. the gas weighs 0.185 grams. what is the pressure of the dry gas?
A voltaic cell consists of a strip of cadmium metal in a solution of Cd(NO3)2 in one beaker, and in the other beaker a platinum electrode is immersed in a NaCl solution
a solution is 40 acetic acid by mass. the density of this solution is 1.049 gml. calculate the mass of pure acetic acid
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