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

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

How To: Find the Percent Given Two Numbers

How To: Do long division without a calculator

How To: Calculate Faster Than a Calculator

How To: Find the area of an oblique triangle using formulas

How To: Calculate percent composition for chemistry

How To: Find the standard deviation with the ZScore formula

How To: Find a number given Its percent

How To: Figure out the domain & range of a piecewise function

How To: Calculate the area of a parallelogram

How To: Do normal probability calculations on a calculator

How To: Find how many toothpicks will be needed to form the nth figure in a sequence

How To: Convert improper fractions to mixed numbers quickly

How To: Learn Calculus in 20 minutes

How To: Find the area of triangle using fraction measurement

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

How To: Find the formula of a piecewise function given a graph

How To: Find and sketch the domain of a multivariable function

How To: Convert between diameter and radius

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

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

How To: Find the Percent Given Two Numbers

How To: Do long division without a calculator

How To: Calculate Faster Than a Calculator

How To: Find the area of an oblique triangle using formulas

How To: Calculate percent composition for chemistry

How To: Find the standard deviation with the ZScore formula

How To: Find a number given Its percent

How To: Figure out the domain & range of a piecewise function

How To: Calculate the area of a parallelogram

How To: Do normal probability calculations on a calculator

How To: Find how many toothpicks will be needed to form the nth figure in a sequence

How To: Convert improper fractions to mixed numbers quickly

How To: Learn Calculus in 20 minutes

How To: Find the area of triangle using fraction measurement

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

How To: Find the formula of a piecewise function given a graph

How To: Find and sketch the domain of a multivariable function

How To: Convert between diameter and radius
1 Comment
How we can know that carbon having 12.01
Share Your Thoughts