How many moles of aluminum do 3.7 x 1024 aluminum atoms represent?
Solution : Step 1: (a) What is meant by the term isomer Com pounds with similar molecularformula but different arrangementof atoms and having different p roperties are called as isomers. Example : Here both the compounds have same molecular formula- C H Cl 4d9heir structural arrangement is different. Hence they are isomers. Step 2: (b) Among the four alkanes, ethane, propane, butane, and pentane, which is capable of existing in isomeric forms Here, first let’s see what is an alkane and then see which among the given alkanes are isomers. Alkanes a re the hydrocarbons ydrocarbons are the compounds, which are made up of only Carbon(C) and Hydrogen(H)) in which carbon and hydroge n toms are singly bonded( i.e one bond) to each other. Each carbon in alkane is attached to 4 other atoms (this means the valency of the c bon a tom is 4 he alency of an element is the number of h ydrogen atoms that can combine with or replace (either directly or indirectly) one atom of the element).