Practical & Analytical Chemistry · JEE Main previous year questions

2020 1 question

1. Q712020 · 8 Jan 2020 · Shift 1· Numerical answer

   The volume (in mL) of 0.125 M $\mathrm{AgN}{\mathrm{O}}_3$ required to quantitatively precipitate chloride ions in 0.3 g of $[\mathrm{Co}(\mathrm{N}{\mathrm{H}}_3{)}_6]\mathrm{C}{\mathrm{l}}_3$ is _______. ${\mathrm{M}}_{[\mathrm{Co}(\mathrm{N}{\mathrm{H}}_3{)}_6]\mathrm{C}{\mathrm{l}}_3}=267.46\text{ g/mol}$ ${\mathrm{M}}_{\mathrm{AgN}{\mathrm{O}}_3}=169.87\text{ g/mol}$

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   Answer: 26.8 to 27