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Answers PA-Physical Science A Unit TestQuestion 8

8

QuizMultiple Choice

Unit Test

Question 8 of 25 • PA-Physical Science A

A sample of calcium oxide (CaO) has a mass of 2.80 g. The molar mass of CaO is 56.08 g/mol. How many moles of CaO does this sample contain?

Answer

A

0.0499 moles

B

20.0 moles

C

58.9 moles

D

157 moles

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Unit Test - Question 8 | PA-Physical Science A | Revolt