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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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Bjornio Bjornio
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2 years ago
The natural abundance of calcium in the earth's crust is 3.4% by mass. How many calcium atoms are present in a 1.50 g sample of the earth's crust?

▸ 6.6 × 1023 atoms

▸ 3.1 × 1022 atoms

▸ 7.7 × 1020 atoms

▸ 7.7 × 1022 atoms

▸ 5.1 × 1020 atoms
Textbook 
General Chemistry: Principles and Modern Applications

General Chemistry: Principles and Modern Applications


Edition: 11th
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usman007usman007
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