It is possible for head lice to live temporarily on items such as bedding, couches, hair accessories, car seats, toys and clothing. Fortunately, head lice can only survive 24-48 hour off of the head and are relatively easy to remove from the home.
The molar mass of aspirin (2-acetoxybenzoic acid), C9H8O4, is 180.157 g/mol. The molar mass of aspirin (2-acetoxybenzoic acid), C9H8O4, is 180.157 g/mol.
Why is 81 mg and not 80 mg the aspirin dose for children?   This is a vestige of the old system of measuring medications in grains. Follow the math, 1 grain = 64.79 mg 5 grains = standard aspirin dose = 323.99 mg or about oâ¦ur current dose of 325 mg. When we started doing research on the efficacy of Aspirin; we found that for cardiac prevention half of the standard dose was effective (i.e. 162.5 mg). Then we figured out that half of the new dose would also work or 81mg .... This is at least the story that is passed down in medical school ...