How Many Moles are Present in 4g of Sodium Hydroxide

Introduction

The mole is the SI unit used to measure a substance's quantity. Its designation is mol. As a byproduct of chlorine synthesis, sodium hydroxide is created. It is a crystalline solid and colourless in its purest form. This compound is highly water-soluble and consists of sodium cations and hydroxide anions. NaOH draws moisture out of the atmosphere. Because it is so corrosive, it can cause severe burns to your skin, irritate your eyes, and cause other physical harm.

It is always made by combining the chemical with water rather than the other way around since it produces a lot of heat. This inorganic substance serves as a buffer in cosmetics. It has the ability to regulate pH levels. Sodium hydroxide has a pH of 13.

NaOH, or sodium hydroxide, properties

Sodium hydroxide is a crystalline substance that is white and transparent. Due to its corrosive effects on numerous substances, caustic soda is also known as caustic water. It decomposes proteins at room temperature and can burn human skin chemically. Although it is not a naturally occurring substance, sodium hydroxide has been produced on a large scale from easily accessible raw materials for many years and is used in a variety of industrial processes.

Calculation

The following method can be used to determine how many moles of sodium hydroxide there are:

Step 1. Calculate the sodium hydroxide's molecular weight.

• Molecular mass = Sum of the atomic mass of all the atoms

• Molecular mass = Mass of Na + Mass of Oxygen + Mass of Hydrogen

• Molecular mass = 22.989 units + 15.999 units + 1.008 unit

• The molecular mass of NaOH = 39.996 g/mol

Step 2. Calculate the number of moles by the given formula

• Number of moles = Mass of the substance / Molecular mass of a substance

• Number of moles = 4 g / 39.996 g/mol

• Number of moles of NaOH = 0.100 mol

Hence, 0.100 mole are present in 4 grams of NaOH.

Safety Precautions

• Refrain from touching your skin, eyes, or clothing.

• It is not advisable to breathe in gases, fumes, dust, mist, vapour, or aerosols.

• Put on clothing, gloves, and safety glasses.

• Acids must never be combined. When handling chemicals, refrain from eating, drinking, smoking, and using personal products.