A Levels Chemistry

A household bleach contains sodium chlorate(1), NaCIO, as its active ingredient. The
concentration of NaCiO in the bleach can be determined by reacting a known amount with
aqueous hydrogen peroxide, H2O2.
NacIO(aq) + H2O2{aq) → NaC(aq) + O2(g) + H2O(1)
When 25.0 cm of bleach is treated with an excess of aqueous H2O2, 0.0350 mol of oxygen gas is
given off.
What is the concentration of NaC10 in the bleach?
A 8.75 x 10moldm-3
B 0.700 mol dm3
0.875 mol dm-3
D
1.40 moldm-3


Atoms, Molecules & Stoichiometry

An Introduction to Organic Chemistry

Hydrocarbons

Atoms, Molecules & Stoichiometry, An Introduction to Organic Chemistry, Hydrocarbons, Chemical Reactions and Properties , Alcohols, Carbonyl Compounds, Carboxylic Acids & Derivatives | 2009 - M/J - 9701/1 | Q2