Significant figures

• Leading zeros (zeros to the left of the first non-zero digit) are not considered significant figures.
• Analytical Chemistry is concerned with the chemical characterization of matter
• Qualitative Analysis deals with the identification of elements, ions, or compounds present in a sample
• It establishes the relative amounts of one or more species or analytes
• The role of Analytical Chemistry is to recognize different substances and determine their constituents
• It has applications throughout industry, medicine, and all sciences