In chemistry you come across problems which ask you to find the percent by mass and percent composition of each element in a chemical compound. To do this the first step is to compute the molar mass. Use the periodic table to look up the mass of individual atoms and multiply it by the number of atoms to find the mass of that element. Now add up all the masses to arrive at the molar mass of the compound. Now to find the percent composition of an element divide the total mass of each element by the molar mass and multiply by 100. In this way compute the percent mass of each element. Finally if you add up all these percentages the total should be approximately equal to 100 in case you rounded any values. This video shows how to find the percent mass of each elements in a chemical compound.
 Hot
 Latest

How To: Divide small numbers by big numbers

How To: Remember "greater than" & "less than" symbols

How To: Find the Percent Given Two Numbers

How To: Find a number given Its percent

How To: Determine math proportions with the SquareCube Law

How To: Use ">" (greater than) and "<" (less than) symbols

How To: Find the slope of a line given 2 points with fractions

How To: Do long division without a calculator

How To: Convert Fahrenheit to Celsius with a formula

How To: Find the area & perimeter of triangles & squares

How To: Square expressions involving radicals

How To: Simplify radicals which are not perfect squares

How To: Find the x & y intercepts of rational functions

How To: Find the percentage of a number easily

Use the quadratic equation: finding the mirror point

How To: Solve equations involving square roots

How To: Graph a linear equation in 3 different ways

How To: Find the equation of a perpendicular line easily

How To: Divide proper fractions

How To: Add, subtract, multiply & simplify polynomials

How To: Divide small numbers by big numbers

How To: Remember "greater than" & "less than" symbols

How To: Find the Percent Given Two Numbers

How To: Find a number given Its percent

How To: Determine math proportions with the SquareCube Law

How To: Use ">" (greater than) and "<" (less than) symbols

How To: Find the slope of a line given 2 points with fractions

How To: Do long division without a calculator

How To: Convert Fahrenheit to Celsius with a formula

How To: Find the area & perimeter of triangles & squares

How To: Square expressions involving radicals

How To: Simplify radicals which are not perfect squares

How To: Find the x & y intercepts of rational functions

How To: Find the percentage of a number easily

Use the quadratic equation: finding the mirror point

How To: Solve equations involving square roots

How To: Graph a linear equation in 3 different ways

How To: Find the equation of a perpendicular line easily

How To: Divide proper fractions

How To: Add, subtract, multiply & simplify polynomials
1 Comment
How we can know that carbon having 12.01
Share Your Thoughts