MOLAR MASS

Moles of compounds 
Grade-10
Chemistry 
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Slide 1: Slide
Science Secondary Education

This lesson contains 13 slides, with interactive quizzes and text slides.

Items in this lesson

Moles of compounds 
Grade-10
Chemistry 

Slide 1 - Slide

A dozen molecules of CCl2F2 contains one dozen of carbon and two dozens of Cl and F atoms 
INTERPRET- How many of each kind -carbon, chlorine and flourine are in 1 mol of CCl2F2?

Slide 2 - Slide

OBJECTIVES 
1. recall molar mass
2. Relate mass, moles and molar mass of compounds 

Slide 3 - Slide

Slide 4 - Slide

Molar mass 
Molar mass is the sum of the atomic masses of elements  in the compound 
NaCl--- 22.99 + 355 = 

Slide 5 - Slide

Example 
What is the mass of 4.35 *10-2 mol of zinc chloride ZnCl2   ?

Slide 6 - Slide

Find the molar mass of CaCl2 using your periodic table

Slide 7 - Open question

Find the molar mass of (NH4)3PO4 using Periodic table

Slide 8 - Open question

Baking soda,NaHCO3 is a compound used in many recipes. What is the mass of 1.25 moles of baking soda?

Slide 9 - Open question

Titanium oxide is a common compound used as a white pigment.White road marking paint contains TiO2.Calculate the number of moles of TiO2 in 43.5 g of the compound

Slide 10 - Open question

Challenge- DEET is an active insect repellent patented in 1946. What must you know to determine its molar mass?

Slide 11 - Open question

Challenge -Which of these contains the most moles of carbon atoms per mole of the compound- ascorbic acid (C6H8O6) , glycerin (C3H8O3) or vanillin (C8H8O3)

Slide 12 - Open question

List two things needed to find the number of moles

Slide 13 - Mind map