Chemistry

Ignition Temperature – the lowest temperature at which a substance catches fire

This short article is going to be about ignition temperature which is the lowest temperature at which a substance catches fire. Before going any further let us first see why fire is important to us. We will also learn about why knowing this temperature for various substances is important to us. TLDR; The lowest temperature …

Most Abundant Element on Earth

We already know what are elements in chemistry. In this article, we will learn about the most abundant element on earth and its atmosphere.  Some elements are found in abundance whereas some elements are almost rare on the Earth. Did you know that there are a total of 118 elements? (read What is an element …

What is an element in Chemistry with examples?

In this article, we will learn about what elements are along with examples. We will define chemical elements, learn about how many elements are there, and will discuss isotopes and allotropes during the course of our article. Introduction We all know about matter and its properties. The matter is defined as anything that takes up …

Quantum number worksheet

Quantum number is an important concept for understanding the structure of atom. Here get a free quantum number worksheet on Quantum number to excel in the examination. You may also want to look at our post on Quantum Numbers Chart. Quantum Numbers Practice Problems Worksheet Question 1. What is the total number of orbitals associated …

Molarity Practice Worksheet

Question 1 Calculate the Molarity of the below solutions a.100 g NaCl dissolved in 1500 cm3 solution b..2 Moles of AgNO3 in 2 L of solution c.16 gm of CH3OH in 400 cm3 of solution Molar Mass of NaCL = 58.5 g/Moles Molar Mass of CH3 OH = 32 g/Moles Answer a.14 M b..1 M …

Weight Percent Formula | How to convert weight percent to mole fraction

In this post , we will be checking out what is weight percent or mass percent,what is Weight percent or mass percent formula, how to convert weight percent to mole fraction Weight percent or mass percent is defined as the weight of the solute in 100 gm of the solution \$Weight \; percent= \frac {mass …

Quantum Numbers Chart

Here is the chart of allowed Quantum numbers We can  easily see the below combinations are not possible for Quantum numbers Related Articles Quantum number worksheet How to Find Quantum Numbers for an atom Quantum Mechanical Model

How to Find Quantum Numbers for an atom

There are four Quantum Numbers for the each electron in the atom. In this post we will see how to find Quantum Numbers for the electrons in an atom or elements . In order to find the Quantum numbers, we need to consider two things. a. Quantum number range and meaning b.How the electrons are …