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Determine the number of grams in each of the following?
A.) 5.94 X 10^23 atoms of Cl
B.) 8.099 X 10^23 atoms of I
C.) 1.001 X 10^21 atoms of Au
1 Answer
- jcherry_99Lv 79 years agoFavorite Answer
Set up these two ratios for each question.
1 mole = 6.02 * 10^23 atoms
x mole = 5.94 * 10^23 atoms
x * 6.02 *10^23 = 1 * 5.94 * 10^23
x = 5.94 * 10^23/6.02*10^23
x = 0.9867 moles
1 mole of Cl = 35.5 grams
0.9867 mole = x grams
x = 0.9867 * 35.5
x = 35.03
The other two problems are done exactly the same way. For this question are you sure you were not give molecules of Cl2?
If you were then 0.9867 * 71 = 70.06 grams is the right answer.
