7.2: Mass-Mole Conversions

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Chemistry

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9th - 12th Grade

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Easy

Katherine Fehrenbach

Used 3+ times

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9 Slides • 5 Questions

Multiple Choice

How many pieces are in a mole?

6.02x10²³

6.02x10²²

6.02x10²⁴

6.02x10²⁰

Multiple Choice

A chemist places 2.50 g of iron on a scale. How many moles of iron are on the scale?

139.6 moles

22.3 moles

0.764 moles

0.045 moles

Multiple Choice

To melt the ice, Cindy throws 455 g of calcium chloride, CaCl₂ on her sidewalk. How many moles of CaCl₂ did she throw?

50,500 moles

4.10 moles

0.244 moles

111 moles

Multiple Choice

How many grams are there in 1.5 moles of ammonia (NH3)?

255.45

25.545

0.255

2.5545

Multiple Choice

What is the mass of 3 moles of calcium carbonate (CaCO3)?

150.09 g

900.81 g

450.27 g

300.27 g

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