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ORGANIC COURSE 2

ADRIAN

Read about Adrian as an Educator of over thirty years, as a Chemistry Tutor with a resume of helping hundreds of private clients over three decades, and as an Author and Writer with an extensive portfolio of work

ADRIAN'S CORE VALUES

Read about the the four Core Values that drive all of Adrian’s professional endeavors, and that act as the cornerstones of his work

ADRIAN'S CHEMISTRY BOOKS

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CHEMISTRY BOOK GALLERIES

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CHEMISTRY WRITING PORTFOLIO

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AP MCQ 01ABCD PART 1

  • Question 01:

    What is the % by mass of beryllium chloride, BeCl2?


  • Question 02:

    What is the mass, in g, of a single atom of sulfur?


  • Questions 03-04:

    A compound is found to be 5.88 % hydrogen by mass, with the remainder of the compound being made up of oxygen.

    Question 03:

    What is the empirical formula of the compound?

  • Question 04:

    The compound has a molar mass of 34.02 g mol-1. What is its molecular formula?


  • Question 05:

    How many barium ions does one mole of barium phosphate (Ba3(PO4)2) contain?


  • Question 06:

    What is the average atomic mass of a sample of naturally occuring X, if it is comprised of the following isotopes; 47% X51, 17% X52 and 36% X56?


  • Question 07:

    What do atoms of the isotopes Cl35, and Cl37, have in common, given that the average atomic mass is 35.45 amu?


  • Question 08:

    What is always true of a pure compounds' % by mass composition?


  • Question 09:

    Which of the following types of substances must all pure substances fall into?


  • Question 10:

    Which of the following statements is true regarding various oxides of nitrogen?