Suppose you were preparing 1.0 L of a bleaching solution in a volumetric flask, and it calls for 0.24 mol of NaOCl If all you had available was a jug of bleach that contained 0.73 MNaOCl, what volume of bleach would you need to add to the volumetric flask before you added enough water to reach the 1.0 L line? Express the volume in milliliters to two significant figures.

In a student experiment, the empirical formula of a copper halide was found by adding aluminum metal to an aqueous solution of the halide, displacing copper metal. The copper metal was filtered, washed with distilled water, dried, and weighed; three separate determinations were performed. The copper halide solution contained 42.62 g of copper chloride per liter. The student recorded the following experimental data. Part A Write the empirical formula of copper chloride based on the experimental data. Volume of copper chloride solution Mass of filter paper Mass of filter paper with copper (g) Trial Express your answer as a chemical formula. (mL) (g) A 49.6 0.908 1.694 > View Available Hint(s) 48.3 0.922 1.693 42.2 0.919 1.588

A student prepared a standard copper solution by combining 2.63 mL of stock 0.270 mol/L copper(II) sulfate solution with 6.37 mL of water. What is the molar concentration of Cu2+ in this solution? Give your answer in in decimal format. When entering units, use proper abbreviated units with proper capitalization.

A chemist prepares a solution of silver(I) nitrate (AgNO,) by measuring out 245. µmol of silver(I) nitrate into a 400. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in umol/L of the chemist's silver(I) nitrate solution. Be sure your answer has the correct number of significant digits. u mol x10