Concentration of a solution CHEMISTRY REVISION – C4.3 Complete the table Write how many there are in: Na11 Electrons: Protons: Neutrons: What is an isotope? What is Ar? What is Mr? What is the Mr of C2H5OH? What is a mole? Balance the equation and say how many moles of each substance there are: H2 + O2 H2O Relative Charge Relative Mass Proton Neutron Electron 23 What is percentage yield and what is the equation to calculate it? What is atom economy and what is the equation to calculate it? Calculate the percentage yield of calcium carbonate when 200tonnes of limestone is used and 98tonnes of carbon dioxide is produced: What is the Relative Atomic Mass of C? What is the Relative Formula Mass of H2O? What is the formula for calculating the concentration of a solution in g/dm3? KEY WORDS: Molecular formula Atomic number Mass number Yield Isotope Percentage yield Relative atomic mass Concentration of a solution Relative formula mass ASSESSMENT: