Learning Task 3: Solve the following problems below. Do this in a separate sheet of paper
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1. Gold (Au) has been used to make ornamental objects and jewelry for thousands of
years. Gold nuggets found in a stream are very easy to work and were probably
one of the first metals used by humans. (1 mol of Gold (Au) - 196.97g). Calculate
the:
A. Number of moles in a 95.0 g sample of a gold nugget.
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B. Number of atoms in a 95.0 g sample of a gold nugget.
2. During exercise, lactic acid (C3H603) forms in the muscles causing muscle cramp.
If 5.0 g of lactic acid (C3H6O3) concentrate in your leg muscles, how many
molecules of lactic acid is causing you pain? (C = 12.0 g/mol, H = 1.008 g/mol,
O = 16.0 g/mol)​