A nanoparticle of a platinum catalyst has a surface area of 1.8×104 nm21.8 \times 10^4\text{ nm}^21.8×104 nm2 and a volume of 4.5×103 nm34.5 \times 10^3\text{ nm}^34.5×103 nm3.
Calculate the surface area to volume ratio of this nanoparticle.
Give your answer in the form x:1x : 1x:1.
Practise Edexcel GCSE Chemistry Bulk and surface properties of matter including nanoparticles with exam-style questions for Foundation and Higher tier. 63 questions, matched to the Edexcel GCSE Chemistry (1CH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.
