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- How many grams of aspirin (C9H8O4) are present in 7.95×1021 molecules of C9H8O4.
The answer is …………………………..
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- Describe any visual differences between the hydrated sample and the dried, anhydrous form of a sample of KAl(SO4)2What is the mass percentage of C in caffeine, C₈H₁₀N₄O₂? Provide an answer to two decimal places.One can prepare homemade lavender perfume by steam distillation. One of the main components in the lavender oil is linalyl acetate (MW 196 g/mol), which has a vapor pressure of approximately 20 mm Hg at the boiling point of the mixture with water. If one collects 500 g of lavender from a garden and performs a codistillation with water, what would be the composition of the distillate?
- Nitrogen trifluoride, NF3, is used in the production of flat panel displays. It is also a potent greenhouse gas. The average concentration of NF3 in the atmosphere increased from 0.02 parts per trillion (ppt) in 1978 to 0.454 ppt in 2008. What was the concentration of NF3 in 2008 in mg per kg of air?Granulated sugar (sucrose, C12H22O11) has an average density of about 0.85 g/cm3. Calculate the molarity of sucrose if 2.0 tsp of sugar is added to a 8.0 oz cup of coffee. 1.00 tsp = 4.93 cm3How many moles of glucose, C6H12O6, can be "burned" biologically when 10.0 mol of oxygen is available?