In the laboratory, you dissolve 22.3 g of chromium(II) iodide in a volumetric flask and add water to a total volume of 250 . mL. What is the molarity of the solution?________ M

Please help me answer questions 1 and 2. (Questions attached below) 1. When you arrive at the lab, 2.0 M H2SO4(aq) and 2.0 M HC2H3O2(aq) will be present. Youwill need to dilute these solutions using beakers and graduated cylinders from your drawerand DI water.i. Calculate the volume of the 2.0 M HC2H3O2(aq) and DI water needed to create 50.0 mLof 1.05 M HC2H3O2(aq).ii. Calculate the volume of the 2.0 M H2SO4(aq) and DI water needed to create 50.0 mL of0.75 M H2SO4(aq). 2. A 48.33-mL sample of 0.150 M NaBr is titrated into 50.00 mL of 0.145 M AgNO3. Bothsolutions had the same initial and final temperatures. The reaction occurred in a calorimeterwith a known heat capacity and produced 1546.03 J of heat.i. Write a balanced equation that is occurring.ii. Determine the theoretical yield of the solid.iii. Calculate the enthalpy of the reaction (kJ/mole of precipitate).

You perform a titration between Sodium hydroxide (NaOH) and Carbonic Acid (H₂CO3). The NaOH is in the burette and the H₂CO3 is in the Erlenmeyer Flask. 42.5 mL of 0.50 M NaOH was added to 25.6 mL of H₂CO3, what is the concentration of the H₂CO3? Give your answer to 2 decimal places..

How many grams of NaCl are required to precipitate most of the Ag* ions from 2.50 × 10² mL of 0.0147 M AgNO3 solution? Round your answer to 3 significant digits. g NaCl x10 X 5