How would your percent acid in aspirin compare
Suppose you get the same data that you recorded in your lab but you mistakenly thought the mol ratio of acetylsalicylic acid:NaOH was 2:1 respectively. How would your percent acid in aspirin compare?
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Caffeine is a stimulant found in coffee and tea . A solution of caffeine in chloroform as a solvent has a concentration of 7.90×10-2 . Calculate the percent caffeine by mass.
A gas sample has an original volume of 760 ml when collected at 720 mm and 25degC. What will be the volume of the gas sample if the pressure increases to 820 mm and the temperature increases to 30degC?
After the reaction has gone to completion, the pressure inside the flask is 390. torr at 20.°C. What is the mass percent of MgO in the mixture? Assume that only the MgO reacts with CO2.
A 64 g piece of ice at 0 degrees celsius is added to a sample of water at 9 degrees celsius. all of the ice melts and the temperature of the water decreases to 0 degrees celsius. How many grams of water were in the sample?
The enthalpy of formation of compound X is -612 kJ/mol, and the sole product of its combustion has a enthalpy of formation of -671 kJ/mol. What is the enthalpy of combustion of compound X?
What is the crystal lattice energy of LiI? Sublimation energy for Li is 155 kJ/mol and ionization energy for Li is 520 kJ/mol. Sublimation energy for I2 is 62 kJ/mol and dissociation energy for I2 is 151 kJ/mol. The electron affinity for I is -295
What is the approximate concentration of the solutionapproximate concentration of the solution in {rm mol}/{rm kg}, if 1 {rm mol} of solute particles raises the boiling point of 1 {rm kg} of solvent by 3.63 ^circ {rm C}?
What is the electron domain geometry and molecular geometry for iodine trichloride
Hydrogen bonding is found in situations represented by D-H---A where both the donor atom, D, and the acceptor atom, A, are one of the highly electronegative elements O, N, or F. NH2Cl falls into this category.
Equal volumes of water (density 1.00g/mL) and ethyl alcohol (density 0.789g/mL) are combined. If the total volume is 190% of volume of each component, what is the density of the solution?
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