Atomic Theory and Structure The Mole (previous version): Its History and Use by Anthony Carpi, Ph.D. Reading Quiz Teach with this The mole is also referred to as: Avogadro's number Bohr's number Cannizzaro's number Loschmidt's number What number does the mole represent? 12 6 x 1022 6.02 x 1023 60.2 x 1023 The concept of the mole says that: in a defined mass of an element there is a precise number of atoms in a defined mass of an element there is a precise number of compounds in the atomic weight of an element there is one atom none of the choices How many silicon atoms are there in 28.09 g of Si? 1 1.204 x 1024 28.09 6.02 x 1023 How do you calculate the molecular weight of a compound? by dividing the weight of atoms of the compound by summing the atomic weights of elements in that compound by multiplying the weight of atoms of the compound by subtracting the weight of atoms of the compound What is the molecular weight of CO2? 28.01 32.00 44.01 72.08 Which one of the following has the same number of moles as 28.02 g of nitrogen? 19.00g of potassium 23.00g of potassium 24.01g of magnesium 36.04g of water Score Quiz