This is 10 grams of Agar Powder. Agar is a growth medium used to culture microorganisms in laboratory situations.
This Liebig Condenser is made from heat resistant borosilicate glass for efficiency and high speed condensing. The Liebig condenser has a long tube. The inner tube is sealed to the large water cooling jacket. An inlet and outlet tube are sealed to opposite sides of the jacket (200mm).
This is a Concave/Convex Glass Spherical Mirror , 50mm D x 15cm FL.