calculate the numbers of moles of sodium thiosulfate (Na2S2O3) and hence the moles of S2O3^2- ions present in the volume of 43mL

someone plz help

4 answers

You didn't provide enough information to answer but what you want is moles = M x L = M x 0.043L = ?
what does M means?
moles = molarity x liters (or molarity x litres if you're in the UK).
calculate the number of moles of I2 librated