Zn(NO₃)₂

Formula and structure: The zinc nitrate chemical formula is Zn(NO3)2 and the molar mass is 189.36 g mol-1 in its anhydrous form and 297.49 g mol-1 when it is in its hexahydrate form. It is formed by the nitrate anion NO32- and the Zinc2+ cation.

The nitrate anion is a univalent (-1 charge) polyatomic ion composed of a single nitrogen atom ionically bound to three oxygen atoms (Symbol: NO3) for a total formula weight of 62.05. Zinc Nitrate is generally immediately available in most volumes.

The chemical zinc nitrate is a zinc salt of nitric acid with the chemical formula Zn (NO3) 2. The molecular weight of the compound is 225.18 g / mol. Zinc nitrate is registered under CAS number 7779-88-6, EC number 231-943-8 and UN number: 1514. Zinc nitrate crystalline is a colourless oxidising solid.

Zinc nitrate is a salt of a strong acid (nitric acid) and a weak base (zinc hydroxide). So, its aqueous solution should be acidic. In water, the cation of Zn(NO3)2 undergoes hydrolysis producing hydrogen ions. The presence of such additional H+ ions makes the solution acidic.

Many of the elements on the periodic table will always form ions that have the same charge. Many of the transition metals (orange) can have more than one charge. The notable exceptions are zinc (always +2), silver (always +1) and cadmium (always +2).

We say that copper is the positive pole and zinc is the negative one, but in reality, the transition of electrons will happen against electrostatic forces, not following them: the positive electrode, copper, will become negatively charged from the extra electrons, at the expense of the negative electrode, zinc which …

Zinc(2+) is a divalent metal cation, a zinc cation and a monoatomic dication. It has a role as a human metabolite and a cofactor. Zinc cation is a Copper Absorption Inhibitor. The physiologic effect of zinc cation is by means of Decreased Copper Ion Absorption.

Most zinc is used to galvanise other metals, such as iron, to prevent rusting. Galvanised steel is used for car bodies, street lamp posts, safety barriers and suspension bridges. Large quantities of zinc are used to produce die-castings, which are important in the automobile, electrical and hardware industries.

Electroplating is done by the process of electro deposition. The fasteners are dipped in a chemical bath containing dissolved zinc. When direct current is applied, the zinc metal at the anode begins to dissolve, and the free metalions reach the cathode to form a thin layer of coating on the fastener.

Materials needed:

• Postal scale and plastic containers for weighing, such as cottage cheese containers.
• Measuring cups large enough to measure quarts or liters.
• Epsom salts.
• Zinc sulfate.
• Karo brand corn syrup.
• 1 gallon of white vinegar, about $2.50/gallon at the grocery store.
• 1 gallon of muriatic (hydrochloric) acid.