Roll up your sleeves and get counting: Tallying the number of moles on your arm can help predict your chances of melanoma, researchers from King’s College London discovered. In the study, people with ...

Use the information from the question to calculate how many moles of the known reactant or product are actually used. Use the balanced equation to work out how many moles of the reactant or product ...

Solutions are formed when solutes dissolve in solvents. If the number of moles of solute and the volume of solvent used is known, the concentration of the solution can be calculated. The concentration ...