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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)
Answers: 2
Chemistry, 22.06.2019 05:50
Fill in the coefficients that will balance the following reaction: a0cr2(so4)3 + a1agno3 -> a2cr(no3)3 + a3ag2so4
Answers: 1
Chemistry, 22.06.2019 17:00
Which statement is true about a catalyst? a: a catalyst decreases the rate of the reaction. b. a catalyst is consumed during a chemical reaction. c. a catalyst lowers the activation energy of a reaction. d. a catalyst increases the reactant concentration during a reaction.
Answers: 1
Chemistry, 22.06.2019 19:00
What information does a complete ionic equation give that the balanced equation doesn’t show?
Answers: 1
Chemistry, 22.06.2019 22:10
Determine the ph of 0.10 m nh3 solution. nh3 is a weak base with a kb equal to 1.8 x 10-5 round answer to nearest whole number.
Answers: 1
Learning Task 3: Solve the following problems below. Do this in a separate sheet of
paper
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