When a 10.00 ml sample (density 1.00 g/ml) containing fluoride ion was added to 25.00 ml of zrl2, the absorbance due to the complex decreased from 0.800 to 0.379 in a 1.00 cm cell. if the molar absorptivity of zrl2 is 2.17 x 105 , calculate the concentration (in parts per million) of f- in the sample. hint: do not forget about the dilution!

Asolution contains 180 g of glucose (c6h12o6) and 162 g of water. what is the mole fraction of glucose?

Chlorine and water react to form hydrogen chloride and oxygen, like this: 2cl2 (g) + 2h2o (g) → 4hcl (g) + o2 (g) also, a chemist finds that at a certain temperature the equilibrium mixture of chlorine, water, hydrogen chloride, and oxygen has the following composition: compound concentration at equilibrium cl2 0.55m h2o 0.57m hcl 0.53m o2 0.34m calculate the value of the equilibrium constant kc for this reaction. round your answer to 2 significant digits.

Which one of the following substances would be the most soluble in ccl4? na2so4 h2o ch3ch2ch2ch2oh c4h10 hi