Enumerate methods to determine a compound's melting point.

Which method would you use to determine water content in packaging material, pharmaceuticals and cosmetics?  Mention few advantages of this method.

2. Why does the temperature of a mixture of ice and water remain constant during melting and freezing?

Water is a volatile liquid. True O False

how to separate a solid mixture of lithium bromide and barium carbonate

However, there are many other commercially purchased inorganic and organic compounds that people routinely used in their households (or in their everyday lives). A list of 19 chemicals with common names are written below. Find each of these items in your home or in a local grocery and take picture of the container (if you do not have access to all of them choose at least 12 of them) and then complete the table below. For #16 and 17 you choose any other house hold chemical and complete the table. • Inorganic compounds 1) table salt, 2) baking soda, 3) washing soda, 4) photographic fixer, 5) Epsom salt, 6) alum, 7) chalk, 8) corn starch, 9) sand, 10) active ingredient in toothpaste or cleansing agent and disinfectant, 11) decolorizing carbon Organic compounds Naming of organic compounds will be discussed in details in Lab 10 however there are still some simple organic compounds that you encounter at your home. Organic compounds are compounds that contain at least one carbon with one…

Sodium formate is a white solid. Draw an atomic/molecular level picture to represent solid sodium formate. Sodium formate is soluble in water. Draw an atomic/molecular level picture to represent aqueous sodium formate.

) How do we know we are observing the beginning of the melting point range? First drop of liquid is observed (sample has began to melt) Sample has fully melted (no more solid is observed) Sample has began to decompose (gas has began to form) Sample has fully decomposed (the entire sample is gaseous)

Explain the reason behind why oils leave a translucent spot on paper even after drying, while ethanol and water do not.

Explain the role of temperature in the purification process of crystalline compounds.