This is a combination product containing 2 medications: methocarbamol and ibuprofen. It is used to relieve pain associated with muscle spasm such as strains and sprains, back pain, and tense neck muscles. Methocarbamol belongs to a class of medications called muscle relaxants and they reduce muscle spasms. Ibuprofen belongs to a class of medications called nonsteroidal anti-inflammatory drugs (NSAIDs) that reduce pain and inflammation.
The torr (symbol: Torr) is a non-SI unit of pressure with the ratio of 760 to 1 standard atmosphere, chosen to be roughly equal to the fluid pressure exerted by a millimeter of mercury, i.e., a pressure of 1 Torr is approximately equal to one millimeter of mercury.
Use Raoult's Law: Problem #3: How many grams of nonvolatile compound B (molar mass= 97.80 g/mol) would need to be added to 250.0 g of water to produce a solution with a vapor pressure of 23.756 torr? The vapor pressure of water at this temperature is 42.362 torr. Solution: We will assume that B does not ionize in solution. 1) Determine mole fraction of solvent that produces a solution vapor pressure of 23.756 torr: P solution = (Ï solvent) (PÂ° solvent) 23.756 torr = (x) (42.362 torr) x = 0.5608. 2) Determine moles of compound B needed to produce the above solvent mole fraction: 0.5608 = 13.88 / (13.88 + B)