A man writes his biodata with carbon pencil on the plane paper having mass 150 mg . After writing his biodata, he weighs the written paper and find its mass is 152 mg . What is the number of carbon atoms present in the paper?

Step-by-step solution

Mass of C -atoms =152-150=2 mg Molar mass of C-atoms =12 ~g =12000 mg 12000 mg of carbon contains 6.022 10²³ atoms carbon 2 mg of carbon contains = 6.022 10²³ 12000 2 aligned & =0.0010036 10²³ & =1.0036 10²⁰ atoms aligned