Naming and Formula Writing Review

Thursday 11/17: Unit 5 review

Announcements/Reminders

Agenda:

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• Phones up by the bell!

• 2 in person school days until Thanksgiving break!!!

• Unit 5 test tomorrow

• test review​ due tonight

• If you plan to be absent on Friday

• Mon/Tues ​11/21-11/22 are elearning days, check GC

Bellwork:

work on test review​

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Review

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Multiple Choice

A formula with the lowest whole # ratio of elements in a compound is called

• Molecular Formula

• Chemical Formula

• Empirical Formula 

• Distance Formula

​Percent to grams, grams to moles, divide by smallest, multiply til whole

​Try this one.....

Multiple Choice

What is the first step in calculating empirical formula?

• convert grams to moles

• change percent to grams

• divide by smallest number of moles

• multiply 'til whole

Multiple Choice

How many moles are in .0806 g of carbon?

• 12.01

• .0067

• .9672

• 1.2

Multiple Choice

How many moles are in .01353 g of hydrogen?

• 1.01

• .0134

• .01366

• 3.2

Multiple Choice

How many moles are in .1074 g of oxygen?

• 1.01

• 15.99

• .0067

• 3.2

Multiple Choice

What is the next step in calculating empirical formula?

• convert grams to moles

• change percent to grams

• divide by smallest number of moles

• multiply 'til whole

Fill in the Blanks

What is the empirical formula?

​Review

• ​test review

• study guide

• percent composition to empirical formula

  • pages 28-29, 24-25

• naming​

  • pages 18-21

  • page 30 (naming puzzle)

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Some text here about the topic of discussion