rate - continuous monitoring

Question 1

ways to determine rate via continuous monitoring

Answer 1

by gas collection

by mass loss

by colorimetry

Question 2

method to use a colorimeter

Answer 2

prepare standard solutions of known concentrations of a coloured chemical

select a filter with the complementary colour of the coloured chemical

zero the colorimeter with water

measure absorbance readings of standard solutions

plot a calibration curve - absorbance against conc

carry out the reaction

take absorbance readings and read off graph