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How do I solve problems like the following?

There area approximately 5.58x10^21
(scientific notation) atoms in a gram of silver. How many atoms are there in 3 kilograms of silver? Express your answer in sicientific notation.

ANY hints/tips are EXTEMELY appreciated--thank you!

1 answer

1) Figure out number of grams of silver
3 kilograms X 1000 g/kilogram= 3 X 10^3 grams

2) Figure out number of atoms in 3X10^3 grams of silver

3 X 10^3 grams X 5.58 X 10^21 atoms/gram

= 16.74 X 10^24 atoms or 1.674 X 10^25 atoms
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