Unit 3 · Stoichiometry
Question Bank
Cambridge IGCSE Chemistry 0620 · 30 questions
Q26Stoichiometry
How many moles are in 4.0 g of NaOH (Mr 40)?
(a)10
(b)160
(c)0.10
(d)0.40
Correct answer: (c) 0.10
Explanation: n = m/Mr.
Related lesson
3.3 The mole and the Avogadro constant CoreStoichiometry Tags