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Why is there a concern for dissolved organics and color in the water supply and in water treatment plant?
given that the specific heat capacities of ice and steam are 2.06 jgdegc and 2.03 jgdegc the molar heats of fusion and
A sample of propane gas occupies 625cm3 at 20 degrees Celcius and 750 torr. What is the final volume at -80 degrees celcius and 750 torr
Benzoic acid, HC7H5O2, is a weak monoprotic acid. 10.81 g of sodium benzoate, NaC7H5O2, which is the conjugate base, is placed in a 0.500 L beaker and its pH is measured. It is found the pH of the solution is 8.69.
Aluminum metal shaving (10g) was placed in 100mL of 6.00M hydrochloric acid. What is the mass of hydrogen gas that can be produced. 2Al (s) + 6HCl (aq) -----> 2AlCl3 + 3H2 (g)
Calculate the frequency of the light emitted when an electron in a hydrogen atom makes each of the following transitions.
calculating theoretical yield for this experiment. It is a dehydration synthesis where one mol of hydrated salt yields 3 mol hydrates and 1 mol of anhydrous salt.
Depict the skeletal structure for the major organic product formed when 1-butyne reacts with 1 equivalent of HBr.
Calculate the ratio of the concentration of acetate and acetic acid required in a buffer system of pH=4.10. The pKa of acetic acid is 4.76.
If there's a mixture of O2 and N2, and the mol of N2 is 0.605 mol, and fraction (f) of O2 is 0.251; then, what is the mol of O2?
Find the pH solution & Hydronium ion concentration and What is the pH of a solution of 0.17 M acid and 0.81 M of its conjugate base if the pKa = 8.62?
Define why the benzene ring is more reactive towards electrophilic aromatic substitutions and why the electrophile will predominately go to the ortho as well as para positions.
Calculate the volume of a sample of carbon monoxide at -60.6°C and 801 torr if it occupies 29.4 L at 372 K and 189 torr.
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