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Tutor HuntTest QuestionsChemistry QuestionsYear 10 Chemistry Questions

 

Relative Atomic Mass (GCSE Chemistry)

The following is a GCSE Chemistry test covering 'Relative Atomic Mass' from the broader topic Atomic Structure And The Periodic Table. The test is geared towards the AQA exam board style syllabus.
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Below a typical questions that will be covered in this test. You final score will be logged on your account

The Ar of magnesium is 24.3. Which combination gives the mass of 0.250 mol of magnesium?
A chemist has 6.02 × 10^23 atoms of an element whose Ar = 63.5. What is the mass of this mole in grams?
Copper has isotopes 63 (69.2%) and 65 (30.8%). Which Ar value matches these abundances?
A student is given Ar for two elements: A = 11.0 and B = 23.0. Which statement is true about the masses of one mole of each element?
Which effect do isotopes have on chemical reactions under ordinary conditions?
Given the abundances: isotope A mass 79 (49.7%), isotope B mass 81 (50.3%). What is Ar of bromine (to 2 d.p.)?
A student finds a sample containing 0.50 mol of element Y with Ar 24.0. What mass in grams does the sample have?
Which calculation finds the percentage abundance of isotope X if Ar = 10.2 and isotopes are 10 (x%) and 11 (100-x%)?
Which value is the relative atomic mass (Ar) of chlorine if chlorine consists of 75.77% 35Cl (mass 35) and 24.23% 37Cl (mass 37)?
Element X has isotopes 50 (abundance 40%) and 52 (abundance 60%). Which calculation gives Ar?
A sample contains 0.120 g of an element with Ar = 24.0. How many moles of atoms does the sample contain? (Ar = g per mol)