Chemistry · Year 1 · Week 6

Explain relative atomic mass and relative molecular mass

Strand

Physical Chemistry

Sub-strand

Matter and its Properties

Content standard

Demonstrate understanding of the use of the kinetic theory of matter to explain the behaviour of solids, liquids and gases under different conditions and describe the laboratory preparation of gases as well as their uses in everyday life

Learning outcome

Use the mole concept to determine Collaboration and Communication: GESI: the amount and quantity of various Mixed-ability groups engage in discussions. Be aware be of individuals’ abilities as they substances involved in chemical undertake problem-solving activities. Working together to prepare standard solutions. reactions. Begin to ask questions of some of their stereotypes and biases as they prepare Critical Thinking and Problem Solving: standard solutions. Relating measurement of atoms to Carbon -12 scale. Comparing the actual mass of particles to one-twelfth the : SEL mass of the carbon-12 isotope. Provide opportunities for learners to feel Calculating amount of substances. successful in performing calculations. Calculating the various parameters using mathematical Offer learners with a range of strategies to equations and giving a valid answer. help manage the steps in calculations Calculating the moles of a given substance using the mass. involving the mole concept Work together with other learners in Leadership and Personal Development: preparing a standard solution. By playing different roles in group activities during the Work to build learners’ confidence in the preparation of solutions and discussions on the mole use of laboratory apparatus. concept. National Core Values: Tolerance Respect for others Discipline

Learning indicator

State and perform calculations involving various gas laws and analyse graphs based on the laws