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Lecture 1 : Importance of Chemistry ; Nature of Matter ; Significant figures ; Empirical and molecular formula

  • Chapter 1 - Some Basic Concepts of Chemistry Assignments 1

    What do you understand by significant figures?

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  • Chapter 1 - Some Basic Concepts of Chemistry Assignments 2

    Convert 350C to oF & K. 

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  • Chapter 1 - Some Basic Concepts of Chemistry Assignments 3

    What is the SI unit of density? 

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  • Chapter 1 - Some Basic Concepts of Chemistry Assignments 4

    Write seven fundamental quantities & their units.

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  • Chapter 1 - Some Basic Concepts of Chemistry Assignments 5

    What are the two different system of measurement?

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  • Chapter 1 - Some Basic Concepts of Chemistry Assignments 6

    How are physical properties different from chemical properties?

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  • Chapter 1 - Some Basic Concepts of Chemistry Assignments 7

    Classify following as pure substances and mixtures – Air, glucose, gold,
    sodium and milk.

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  • Chapter 1 - Some Basic Concepts of Chemistry Assignments 8

    How is matter classified at macroscopic level?

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  • Chapter 1 - Some Basic Concepts of Chemistry Assignments 9

    Differentiate solids, liquids & gases in terms of volume & shapes.

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  • Chapter 1 - Some Basic Concepts of Chemistry Assignments 10

    How can we say that sugar is solid and water is liquid?

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  • Chapter 1 - Some Basic Concepts of Chemistry Assignments 11

    How has chemistry contributed towards nation’s development?

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  • Chapter 1 - Some Basic Concepts of Chemistry Assignments 12

    What is chemistry? 

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  • Chapter 1 - Some Basic Concepts of Chemistry Assignments 13

    How many significant figures should be present in the answer of the following calculations?

    (i) 

    (ii) 5 × 5.364

    (iii) 0.0125 + 0.7864 + 0.0215

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  • Chapter 1 - Some Basic Concepts of Chemistry Assignments 14

     

    What will be the mass of one 12C atom in g?

     

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  • Chapter 1 - Some Basic Concepts of Chemistry Assignments 15

     

    Which one of the following will have largest number of atoms?

    (i) 1 g Au (s)

    (ii) 1 g Na (s)

    (iii) 1 g Li (s)

    (iv) 1 g of Cl2(g)

     

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    • Description:-

    Lecture 1 :
    Today, we will discuss the first four topics of this chapter, i.e; Importance of Chemistry ; Nature of Matter ; Significant figures ; Empirical and molecular formula from Chapter 1 - Some Basic Concepts of Chemistry
    OBJECTIVES:
    1:  Concepts about Importance of Chemistry ; Nature of Matter ; Significant figures ; Empirical and molecular formula
    Important Tip:
     This lecture about Some Basic Concepts of Chemistry is base for the further chapters. These topics help in many ways as to understand the and how we can use them. It help you in further studies also.
    Please go through the topic, their notes. Properly do the assignments, watch videos of the concerned topics. If you any doubt about any topic/point please submit it in the discussion section... it will be answered as soon as possible.
    After all of this... when you fell confident about the particular topic/chapter then take the quiz.

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