Which of the following has maximum mass percentage ?A) 5 g of sodium carbonate is added to 95 g of water.B) 15 g of oxalic acid is present in 150 g of its aqueous solution.C) 10 g of sodium chloride is dissolved in 190 g of water.D) 25 g of potassium iodide is present 400 g of its aqueous solution.

If 5.00 g of NaCl are dissolved in 25.0 g of water, the percent mass (m/m) of this soluton isGroup of answer choices15516.7200.2

If 33.6 g of sodium chloride are dissolved in 125 g of water, what is the mass percent concentration (m/m) of  NaCl in the solution?

Four mixtures are added to four separate 50 cm 3 samples of water and stirred.Which mixture results in a solution with the highest pH?201.0 g of aluminium oxide and 1.0 g of aluminium chlorideA1.0 g of magnesium oxide and 1.0 g of magnesium chlorideB1.0 g of phosphorus oxide and 1.0 g of phosphorus chlorideC1.0 g of silicon dioxide and 1.0 g of silicon chloride

.(f) 1000 g of a solution produced by the electrolysis of concentrated aqueous sodium chloridecontains the following masses of compounds.(i) Calculate the mass of sodium hydroxide present in 200 g of this solution

dissolving 17.16 g hydrated sodium carbonate [ Na2CO3.XH2O] in water and complete the volume to 500 mL , if 25 mL of this solution neutralize with 30 mL of 0.2 M hydrochloric acid, Calculate the percentage of water in hydrated salt. [ Na= 23 , C = 12 , O = 16 H =1 ]a) 33.75%b) 35.41%c) 45.67%d) 62.94%