A laboratory technician is preparing a standard solution of sodium thiosulfate (Na2S2O3\text{Na}_2\text{S}_2\text{O}_3Na2S2O3) for an iodometric titration. The technician starts with 25.0 cm3 of a 1.80 mol dm-3 stock solution and needs to dilute it to a concentration of 0.150 mol dm-3.
What volume of distilled water should the technician add to the stock solution?
300 cm3300\text{ cm}^3300 cm3
325 cm3325\text{ cm}^3325 cm3
275 cm3275\text{ cm}^3275 cm3
2975 cm32975\text{ cm}^32975 cm3