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If 0.91 mol of CS2 reacts with oxygen completely according to the equation CS2(l) + 3 O2(g) → CO2(g) + 2 SO2(g) what volume (total) would the products occupy if they were measured at STP?
a graduated cylinder contains 155 ml of water. a 15.0 g piece of iron density 7.86 and a 20.0 g piece of lead are
a solid with an irregular shape and a mass of 11.33 g is added to a graduated cylinder filled with water
What is the temperature change of the water if the downstream diameter is 3.8 cm? If it is 7.5 cm? What is the maximum temperature change for an enlargement in the pipe?
What is the concentration (mol/L) of the chromate ion in a saturated solution of silver chromate
Deduce the structure of the molecule with the formula C4H8O2 with absorption in the FTIR spectrum at 2975 and 1715 cm -1
A box contains 12600 red marbles and 885000 yellow marbles. What sample size is required to reduce the sampling standard deviation of red marbles to 1.85%?
Calculate the pH for each of the following cases in the titration of 50.0 mL of 0.110 M HClO(aq) with 0.110 M KOH(aq).
How much heat is associated with the dissociation of a weak acid, NaHSO4 in water? HSO4^-+H20 >>> H3O^+ + SO4^2-? (not sure if this is a seperate part?) Is this dissociation exothermic or endothermic
Calculate the rms (average) speed of PH3 atoms or molecules at 123 oC. Use R = 8.314 kg-m2/K-s2-mol for the value of the gas constant. The average speed of a PH3 atom/molecule at 123 oC is 539 m/s.
a student performs two melting-point determinations on a crystalline product. in one determination, the capillary tube contains a sample about 1-2 mm in height and the melting range is found to be 141 degree - 142 degree celsius
The Ksp of zinc oxalate (ZnC2O4) at a given temperature is 7.70 x 10-5 M. Calculate the molar solubility in 0.7657 M zinc nitrate at this temperature.
Draw the mechanism of the diel-alder reaction of 1,3-butadiene with maleic anhydride. Does the product have
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