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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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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 of these would change the measured relative atomic mass of an element sample in a mass spectrometer?
Which of the following correctly links Ar, mol and Avogadro’s number?
A sample of element Q weighs 1.00 g and contains only isotope mass 50. How many moles of atoms does it contain? (Ar = mass per mol)
A chemist has 6.02 × 10^23 atoms of an element whose Ar = 63.5. What is the mass of this mole in grams?
If sample A contains only isotope 14 (100%) and sample B contains natural mixture giving Ar 14.01, which statement is true?
Which change would NOT affect the calculated relative atomic mass (Ar) of an element?
Given the abundances: isotope A mass 79 (49.7%), isotope B mass 81 (50.3%). What is Ar of bromine (to 2 d.p.)?
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)?
Which statement best describes relative atomic mass (Ar)?
A sample of a chloride salt is analysed and the element’s relative atomic mass is found to be non-integer. Which is the most likely explanation?