Gcse chemistry revision worksheets on chemistry calculations and mole calculations can be accessed via. Chemistryscience chemistryscience revisiongcse sciencescience lessons. Gcse science chemistry 91 relative formula mass duration. Color table with atomic numbers, element symbols, element names, atomic weights, periods, and groups. Mole calculations formula mass and mole calculations gcse. For example, a single molecule of o 2 has a mass of 32.
They also allow for introduction of the term molar mass as mass in g per mol. Interpret balanced symbol equations in terms of mole ratios use balanced symbol equations to calculate reacting masses calculate the relative formula mass rfm for one substance when the rfms are given for all the other substances in. Gcse chemistry revision chemical calculations mole calculations. In this video, we look at what is meant by the word. Generalizing this definition, the molar mass of any substance in grams per mole is numerically equal to the mass of that substance expressed in. Chemical calculations and moles gcse chemistry equations, formulae and calculations are often the part of the syllabus that many students struggle with. Color printable periodic table pretty much everything you need that can fit on a page and still be readable. Gcse science chemistry 91 calculating moles of a compound. Finding molar mass molar mass, chemistry worksheets, chemistry. Gcse science chemistry 91 reacting masses 1 youtube.
Gcse chemistry revision chemical calculations mole. In this video, we continue looking at the idea of moles. Includes a stepbystep guide, a graphic organizer, and a sample problem that. Task answers are provided and graded grade 6 and 8. Firstly, the formula mass of aluminium oxide can be calculated using the formula and masses found in the data. Molar ratio getting the most from reactants bbc bitesize. Gcse science chemistry 91 calculating moles of an element. The standard temperature used is 273 kelvin or 0 o c, standard pressure is 1 atmosphere, i. Because atomic masses, and the number of particles in a mole, are both based on the isotopic atomic mass of the isotope carbon12, the mass of any substance expressed in atomic mass units is numerically equal to the molar mass of the substance in grams per mole. Learning molar mass is key to stoichiometry, empirical formulas, and more. You need to know the formula connecting moles, mass and formula mass and. Significant figures infographic this reference guide infographic provides a quick way. Aqa gcse 91 chemistry student book look inside, author.
If youre seeing this message, it means were having trouble loading external resources on our website. Calculation of molar mass from relative atomic mass data. The mass of one mole of a substance is sometimes referred to as the molar mass. Calculate the mass of aluminium formed when 51 g of aluminium oxide are electrolysed. From understanding avagadros contact, to mole calculations, formulas for percentage yield and atom economy, at first this part of the gcse chemistry syllabus seems very difficult. Learn how to calculate the formula mass of a compound by adding the mass values of its atoms with bbc bitesize gcse chemistry. Aqa gcse 91 chemistry student book look inside by collins. The mass of 1 mol of molecules or formula units in grams is numerically equivalent to the mass of one molecule or formula unit in atomic mass units. Avogadros law textbook revision gcseigcseo level chemistry molar gas. Moles, formulae and equations edexcel advanced gce in chemistry 9080 edexcel advanced gce in. Avogadros number, the mole, grams, atoms, molar mass calculations. Chemistry notes form 3 chemistry form three pdf online. Doc browns chemistry ks4 science gcseigcsegceas o level revision. If youre behind a web filter, please make sure that the domains.
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