What would be the mass of Iron(II) chloride obtained when 450g of Sodium Chloride is added to Iron(II) oxide?

Answer:

concentration of = 0.0124 = 12.4 ×10⁻³ M

concentration of = 0.0248 = 2.48 ×10⁻² M

concentration of = 0.4442 M

Explanation:

Equation for the reaction:

               ⇄                 +      

Concentration of   =  = 0.469

For our ICE Table; we have:

                                       ⇄                 +      

Initial                 0.469                              0                           0

Change              - 2x                                +2x                      +x

Equilibrium       (0.469-2x)                       2x                         x

K =

K =

Since the value pf K is very small, only little small of  reactant goes into product; so (0.469-2x)² = (0.469)²

x = 0.0124

∴ at equilibrium; concentration of   = 0.0124 = 12.4 ×10⁻³ M

concentration of = 2x  = 2 ( 0.0124)

= 0.0248

= 2.48 ×10⁻² M

concentration of = 0.469-2x

= 0.469-2(0.0124)

= 0.469 - 0.0248

= 0.4442 M

Explanation:

General Rules. In general, the electropositive character of the oxide's central atom will determne whether the oxide will be acidic or basic. The more electropositive the central atom the more basic the oxide. The more electronegative the central atom, the more acidic the oxide.

Answer: The correct option is 2.

Explanation: Polyatomic ions are defined as the ions in which two or more elements are covalently bonded to act as a single unit. They always carry some charge.

Examples of polyatomic ions are: known as hydroxide ion, known as sulfate ion

We are given a compound having 2 ions which are and . these ions are named as sodium ions and hydrogen carbonate ions.

Therefore, the correct option is 2.

Answer:

Ans:

*Carbohydrates

*Proteins

*Cholesterol

Explanation:

The plasma membrane is a structure that has several distinct roles in the cell

The plasma membrane is mainly composed of the phospholipid Bilayer, which is a layer of two sheets located in the internal and external parts. The Phospholipids are said to be Amphipathic because they have both properties of Hydrophobic and hydrophilic

*The Carbohydrate Molecules attach to the Plasma Membrane such as to the lipids and Proteins:

when They attach to the Proteins, they are known as glycoproteins, and they help in cell recognition, when they attach to the lipids, they are known as Glycolipids

*Protein Molecules play an important role in transport system such as Carrier Proteins

*Cholesterol Molecules help in balancing the Fluidity of the plasma membrane

hope this was of use