Skip to content

Course home

Sign up

Transition elements

EasyMediumHard
1234567891011121314151617181920212223242526272829
Question 17

Cobalt(III) forms an octahedral complex ion Y\textbf{Y}Y, which contains both ammonia (NH3\text{NH}_3NH3​) and chloride (Cl−\text{Cl}^-Cl−) ligands.

Complex ion Y\textbf{Y}Y has a molar mass of 197.9 g mol-1.

Using the relative atomic masses Co=58.9\text{Co} = 58.9Co=58.9, N=14.0\text{N} = 14.0N=14.0, H=1.0\text{H} = 1.0H=1.0, and Cl=35.5\text{Cl} = 35.5Cl=35.5, determine the formula and charge of complex ion Y\textbf{Y}Y.

[4]
Markscheme

Transition elements Questions

  1. A Level
  2. /Chemistry
  3. /Transition elements

48 exam-style questions on OCR A A Level Chemistry Transition elements. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank