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Author Question: A sample of pure lithium nitrate contains 10.1% lithium by mass. What is the % lithium by mass in a ... (Read 174 times) |
You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.
The U.S. Pharmacopeia Medication Errors Reporting Program states that approximately 50% of all medication errors involve insulin.
Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.
In 1844, Charles Goodyear obtained the first patent for a rubber condom.