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A 253 mL benzene solution containing 2.61 g of an organic polymer has an osmotic pressure of 8.63 mmHg at 21°C. Calculate the molar mass of the polymer
A quality control chemist at Dow Chemical tried to determine purity of NaOH using titration.He measured out 0.500 g NaOH sample, and dissolved it in 20 mL water. 31.2 mL of a 0.386 mol/L HCl solution was used to reach the end point.
2.0 L of gas A at 1.0 atm and 1.0 L of gas b at 1.0 atm are combined in a 3 L flask. The flask is sealed and over time they react to completely to give gas C according to 2A(g) + B(g)= C(g)
The following reaction is for solvolysis of t-butyl chloride. Show mechanism for the formation of the major and minor products. (CH3)3CCl + H2O--------(CH3)3COH+(CH3)2=CH2
The first steps in the radioactive decay of 257Uuh involves the rapid and successive emission of 4 alpha particles
Write the electron configuration in spectroscopic notation starting with the preceding inert (please also explain a lil bit if you have time) gas for the following. Tell whether each is paramagnetic or diamagnetic.
Consider a steel tank whose volume is 49.0 L and which contains O2 gas at a pressure of 18100 kPa at 29°C. What volume would the gas occupy at STP?
if you used the 8900 kilojoules you expend in energy in one day to heat 51000 of water at 20 what would be the rise in
Glass tempering can be accomplished by both thermal and chemical means. Each puts the near surface region of the glass piece into compression, thereby suppressing growth of surface cracks.
What is the relationship between coordination number, packing, and density (as mass/volume). How do the two more efficient forms of packing compare regarding volume.
At a certain temperature, the reaction PCl5(g) PCl3(g) + Cl2(g) has an equilibrium constant Kc=5.8*10^-2. Calculate the equilibrium concentrations if the initial concentrations [PCl5]=2.00M,[PCl3]=.100M, [Cl2]=0.040M
A solution is prepared by adding 1.10 g of solid rm NaCl to 50.0 mL of 0.100 M {CaCl_2}. What is the molarity of chloride ion in the final solution? Assume that the volume of the final solution is 50.0 mL.
Draw all of the resonance forms of 4-nitrobenzaldehyde which contribute to the enhanced electrophilicity of the aldehyde carbon relative to benzaldehyde
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