Mole Concept
Authored by Joshua Clark
Chemistry
9th - 12th Grade
Used 1+ times
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6 questions
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1.
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3 mins • 1 pt
How many atoms of oxygen (O) are present in 2.64 moles of calcium phosphate, Ca3(PO4)2? Express you answer in scientific notation, i.e., 6.02x10^23, rounded to 2 decimal places.
2.
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3 mins • 1 pt
How many moles of bromine are in 4.98x10^23 atoms of bromine. Hint: bromine is a diatomic molecule. Round you answer to two decimal places.
3.
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3 mins • 1 pt
Using the provided periodic table, determine the molar mass of aluminum acetate, Al(C2H3O2)3. Round your answer to 2 decimal places and do not include units (numeric answer only).
4.
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3 mins • 1 pt
How many moles are present in 26.5 g of carbon? Round your answer to 2 decimal places.
5.
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3 mins • 1 pt
How many grams are in 15 g of potassium? Round your answer to two decimal places.
6.
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3 mins • 1 pt
How many moles of water are present in 3 L? Hint, the density of water is 1 g/L. Round your answer to two decimal places.
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