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What volume of a stock 0.0242 M of KOH solution is required to titrate 0.147 g of oxalic acid dehydrate, H2C2H4 . 2H2O to a phenolphthalein endpoint?
How many grams of CO are needed to react with an excess of Fe2O3 to produce 209.7g Fe? Fe2O3(s) + 3CO(g) -> 3CO2(g) + 2Fe(s)
How many grams of lithopone are produced in the reaction of 315ml of 0.275M ZnSO4 and 285 ml of 0.315M BaS?
the following vibrational levels in the upper electronic state of I2: A) between v=1 and v= 0: b) between v=4 and v=3; and between v=21 and v=20. comment on and explain this trend in terms of the quantum mechanical concept of constraint.
chemicals x and y react to form the gas xy but it takes some time for the reaction to occur. both x and y are placed in a container with a piston and you note the volume. As the reaction occurs, what happens to the volume of the container? explain..
The density of acetic acid vapor at the narmal boiling point, 118.5 degrees C, is given as 3.15 g/L (normal boiling point is the boiling point at P =1 atm). a) calculate the fraction of the vapor that is the monomer and the fraction that is the dim..
Calculate the final temperature of a mixture of 100.0 g of ice initially at -16.0 degrees C and 375.0 g of water initially at 90.0
if 2.67 mL of 0.205 M KOH is required to completely neutralize 25.0mL of a CH3COOH solution, what is the molarity of the acetic acid solution?
Give two reasons why cyclohexane adopts the chair conformation rather than a planar structure
The percentage natural abundances of 39k and 41k are 93.2581% and 6.7302%, respectively. find out the isotopic mass of 41k.?
Write down the electron configurations for C2 and F2. What is the bond order for each? Which one is likely to have larger bond dissociation energy.
When 1.6768 g of an organic iron compound containing, Fe, C, H and O was burned in O2, 3.1363 g of CO2 and 0.89758 g of H2O were produced. What is the mass percent of hydrogen in the compound?
Calculate the pH of the solution when 20.00 mL of 0.10 M CH3CO2H (Ka= 1.76 x 10^-5) has been titrated
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