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Report your answer to 3 significant figures in scientific notation (example: 1.23E+4) unless stated otherwise. DO NOT include the units in your answer. 1. An aqueous solution of copper(II) chloride is prepared by dissolving 5.21 g of copper(II) chloride in 1.77×102 mL of water. Assume that the addition of the solid does not affect the volume of the solution.INSTRUCTIONS: For each, report your answer to 3 significant figures in scientific notation unless stated otherwise. DO NOT include the units in your answer.(a) What is the molarity of copper(II) chloride in this solution (in mol/L)? mol/L Incorrect.Tries 1/3Previous Tries(b) What is the mass percent of copper(II) chloride in this solution? % Incorrect.Tries 1/3Previous Tries(c) What is the mole fraction of copper(II) chloride in this solution? Tries 0/32. Consider a reaction of 606 mL of a 2.97×10-2 M Na3PO4 solution completely reacts with 651 mL of a 8.08×10-2 M SrCl2 solution according to the following UNBALANCED chemical equation. Na3PO4(aq) + SrCl2(aq) → Sr3(PO4)2(s) + NaCl(aq)(a) Balance the chemical equation using the lowest integer coefficients. Be sure to include all coefficients including those of 1. 2 Na3PO4(aq) + 3 SrCl2(aq) → 1 Sr3(PO4)2(s) + 6 NaCl(aq) You are correct.Your receipt no. is 152-5243 Previous Tries(b) Determine the mass (in g) of Sr3(PO4)2 that is formed in the reaction. Report your answer to 3 significant figures in standard notation (example: 1.23). g Tries 0/3(c) If 2.97×10-1 g of Sr3(PO4)2 is produced, what is the percent yield of the reaction? Report your answer to 3 significant figures in standard notation (example: 1.23). % Tries 0/33. (a) How many moles of Ca2+ ions are present in 3.36×102 mL of a 3.87×10-3 M solution of Ca(ClO4)2? mol Tries 0/3(b) What volume of a 9.93×10-1 M solution of Ca(NO2)2 (in L) contains 1.40×10-1 moles of NO2− ion? L Tries 0/3(c) Calculate the molarity (in mol/L) of Cl− ions present in an aqueous solution prepared by adding 29.5 mL of 4.20×10-1 M aqueous CuCl2 to 263 mL of water. mol/L Tries 0/3