Prelab Report-5 due Oct 2.docx

Prelab Report-5 due Oct 2.docx - Prelab Report Chem 103...

This preview shows page 1 - 9 out of 11 pages.

Prelab Report Chem 103 Lab _5____ Name___Bridget Roberts_____ Date____Oct 1, 2018_ ____Section_____570___ Objective: reviewing the topics of atomic weight, formula weight, and molecular weight will be reviewed. Percent composition of a magnesium compound is going to be determined. Then the percent composition will then be used to determine an empirical formula for the magnesium compound. Equipment Used: Crucible and lid Ring stand
Image of page 1

Subscribe to view the full document.

Iron ring Clay triangle Bunsen Burner
Image of page 2
M a tches Crucible Tongs Balance scale
Image of page 3

Subscribe to view the full document.

Wire Gauze Steel wool Medicine dropper
Image of page 4
Beaker Chemicals Used: Chemical name: Hydrogen Common name: Hydrogen Formula:
Image of page 5

Subscribe to view the full document.

H 2 Molar mass:2.02 g/mole Boiling point: -253°C (-423.4°F) Melting point: -259.15°C (-434.5°F) Structure: H-H Chemical name: Oxygen Common name: Oxygen Formula: O 2 Molar mass:32 g/mole Boiling point: -183°C (-297.4°F) Melting point: -218.4°C (-361.1°F) Structure: O-O Hazards: extremely flammable gas, may form explosive mixture with air. Can cause burns or frost bite in eyes and on skin. Chemical Name: Magnesium Common Name: Formula: Mg Molar Mass: 24.31 g/mole
Image of page 6
Boiling point: 1100°C (2012°F) Melting Point: 651°C (1203.8°F) Structure: Mg Hazards: Skin irritant, rinse skin in case of contact. Chemical Name: Magnesium Oxide Common name: Magnesium oxide Formula: MgO Molar mass: 40.3 g/mole Boiling point: 3600°C (6512°F) Melting Point: 2800°C (5072°F) Structure: Hazards: Skin and eye irritant when in contact, rinse eyes out and skin of thoroughly. Chemical name: Magnesium Nitride Common name: Magnesium Nitride
Image of page 7

Subscribe to view the full document.

Formula: Mg 3 N 2 Molar mass:100.93 g/mole Structure: Hazards: can cause metal fume fever. It can perforate the skin and cause lesions. Some
Image of page 8
Image of page 9

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern