E-PROTFOLIO FOR MATT JENSEN

CHEM 1010-0012

Zinc refined and rough

Zinc Symbol - Zn Atomic # - 30 Atomic Mass- 65.38 Group - 12 Period - 4 Physical state room

temperature. - Solid Density -

7.14 g Color-

Metallic/Silver Type of Metal -

Base Isotopes -

64,66,67,68,70 Most common in

Nature - 64

Balance chemical reaction with Oxygen and name products

Zn(g) + CuO(s) ZnO(s) + Cu(l)This was a problem that was in the text

Introductory Chemistry A Fundation-Chapter 6 # 38 A) Zn(g) + CuO(s) ZnO(s) + Cu(l)

Balanced Zn(g) + CuO(s) ZnO(s) +

Cu(l)

 Solubility reaction of Nitrate salts with “ZnO(s)”

 CL : Zn (NO3)2 (aq) + 2NaCl (aq) ZnCl2 (aq) + 2NaNO3 (aq)

OH: Zn (NO3)2 (aq) + 2NaOH (aq) Zn(OH)3 +2NaNO3 (aq)

S : Zn (NO3)2 (aq) + 2NaPO4 (aq) ZnS(aq) + 2NaNO3 (aq)

PO4 : Zn (NO3)2 (aq) + Na2PO4(aq) ZnPO4(aq) +2NaNO3 (aq)

SO4 : Zn (NO3)2 (aq) + Na2SO4(aq) ZnSO4 (aq) 2NaNO3 (aq)

Limiting reagent reaction using 100g of Zn & 100g of Oxygen,

with #’s of moles 2Zn (s) + O2 2 ZnO   100g O mol O2 = 3.125 moles O 32 g 1.53 moles Zn X 2 = 3.06 3.125 moles O = 3.1 Zinc is the limiting reagent

Zinc is found in most of our cells through out the body. This element is critical for enzyme function and a healthy immune system. Zinc is utilized by the body to maintain taste and smell senses. Our bodies incorporate trace amounts to promote effective wound healing, making DNA, and growth and development during pregnancy. Furthermore, zinc was identified as a key developmental mineral for childhood and adolescence growth.

Dietary levels of zinc are found in many foods to include: red meat, poultry, beans, nuts, whole grains, dairy products and certain seafood’s such as oysters.

Zinc can also be introduced to the body by way of a multivitamin/dietary supplement.

Zinc

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