Question

A chemist adds of a M sodium thiosulfate solution to a reaction flask. Calculate the millimoles of sodium thiosulfate the chemist has added to the flask. Be sure your answer has the correct number of significant digits.

Answer 1

M/248

Step-by-step explanation:

The formula for sodium thoisulphate is Na2S2O3.5H20 with the molar weight of on Na=23,S=32, O=16, H=1 multiply their weight by the coefficient then 18 by 5 then the in millimole is equals M/248 X 10^-3