Test your understanding about mole concept by answering the following
problems. Show your complete solution in a one whole sheet of paper.
1.One of the things that we should do to fight the virus is to have some exercises,
during the exercise, lactic acid (C3 H6 03) forms in the muscle causing muscle
cramp .If 5.Og of lactic acid ( C3H603) concentrate in your leg muscle, how many
moles of lactic acid (C3H603) are causing you pain?
2. During the Pandemic you loved to cook sunny side up egg. To your curiosity you
want to know how many moles are there in 3.01 x 1023 molecules of table salt
(NaCl) you put on the egg you cooked.
problems. Show your complete solution in a one whole sheet of paper.
1.One of the things that we should do to fight the virus is to have some exercises,
during the exercise, lactic acid (C3 H6 03) forms in the muscle causing muscle
cramp .If 5.Og of lactic acid ( C3H603) concentrate in your leg muscle, how many
moles of lactic acid (C3H603) are causing you pain?
2. During the Pandemic you loved to cook sunny side up egg. To your curiosity you
want to know how many moles are there in 3.01 x 1023 molecules of table salt
(NaCl) you put on the egg you cooked.
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Solution (1)
Step 1: Calculate the molar mass of C₃H₆O₃.
molar mass = (12.01 g/mol × 3) + (1.008 g/mol × 6) + (16.00 g/mol × 3)
molar mass = 90.078 g/mol
Step 2: Calculate the number of moles of C₃H₆O₃.
Solution (2)
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