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3 years ago

Anatomy+ Chemistry List the 8 common ions in the human body and their charge. Identify each as a cation or anion.

Chemistry

1 answer:

Yuliya22 [10]3 years ago

4 0

Answer:

Sodium ions - Na⁺ - cation

Potassium ions - K⁺ cation

Chloride ions - Cl⁻ anion

Magnesium ions - Mg²⁺ cation

Calcium ions - Ca²⁺ cation

Phosphate ions - P³⁻ anion

Iron ions - Fe²⁺ cation

Zinc ions - Zn⁺ cation

Explanation:

Following is a list of 8 common but essential ions in the cells and fluids of human bodies:

1. Sodium ions helps in regulation and control the level of body fluids

2. Potassium ions help regulate cellular functions

3. Calcium ions are essential for building and maintaining strength bones and teeth. and have role in blood clotting, muscle contraction, and the transmission of nerve signals to cells.

4. Chloride ions are the main anions found outside body cells. They acts as counterions

5. Magnesium ions present in the bones

6. Phosphate ions present in body fluids act as the counterions.

7. Iron

8. Zinc

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Using this relationship, the volume is:

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Using the given values of mass of 80 grams and density of 8 g/cm3, the sample volume is:

v = 80 grams/8 grams/cm3
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3 years ago

A chemist prepares a solution of potassium dichromate by measuring out of potassium dichromate into a volumetric flask and filli

riadik2000 [5.3K]

Answer:

0.297 mol/L

Explanation:

<em>A chemist prepares a solution of potassium dichromate by measuring out 13.1 g of potassium dichromate into a 150 mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mol/L of the chemist's potassium dichromate solution. Be sure your answer has the correct number of significant digits.</em>

<em />

Step 1: Calculate the moles corresponding to 13.1 g of potassium dichromate

The molar mass of potassium dichromate is 294.19 g/mol.

13.1 g × (1 mol/294.19 g) = 0.0445 mol

Step 2: Convert the volume of solution to L

We will use the relationship 1 L = 1000 mL.

150 mL × (1 L/1000 mL) = 0.150 L

Step 3: Calculate the concentration of the solution in mol/L

C = 0.0445 mol/0.150 L = 0.297 mol/L

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3 years ago