Calculate the number of moles of thiosulphate in the 15cm3 of 0.03moldm-3 sodium thiosulphate solution
from google
"Sodium thiosulfate is an inorganic sodium salt composed of sodium and thiosulfate ions in a 2:1 ratio..."
To calculate the number of moles of thiosulphate in the sodium thiosulphate solution, you'll need to use the equation:
Moles = Concentration (mol/dm^3) x Volume (dm^3)
Given:
Concentration = 0.03 mol/dm^3
Volume = 15 cm^3
To convert the volume from cm^3 to dm^3, divide it by 1000.
Volume (dm^3) = 15 cm^3 / 1000 = 0.015 dm^3
Now, you can substitute the values into the equation:
Moles = 0.03 mol/dm^3 x 0.015 dm^3
Moles = 0.00045 moles
Therefore, the number of moles of thiosulphate in the 15 cm^3 of 0.03 moldm^-3 sodium thiosulphate solution is 0.00045 moles.