Solute, A, has a distribution ratio between water and ether of 7.5 A 50 ml aqueous solution of 1M of compound A was extracted with two consecutive extraction of 25ml ether( 25 x2) : calculate the percent ofA remaining in the aqueous phase Select one: 21.1 % 1.6 % 4.4 % 11.7 % 1.38 %

In the distillation of the mixture of acetic acid (MW=60.05 g/mole; d=1.05g/ml) and water (MW= 18.00 g/mole; 1.00 g/ml), a total of 0.028 Liters of  1.0 M std NaOH was used to reach the endpoint of a 23 ml of distillate. What is the mole ratio of the CH3COOH  in the mixture? final answer in 3 decimal places.

Find out the molarity of an old KOH solutionYou measure 1.456 g of KHP (MW=204.22 g/mole) dissolve it in 50.0 of H20 add an indicator and begin to titrate with the old KOH KHP (aq) +KOH (aq) =K2P (aq) +H2O (l) the initial and volume burette readings are 1.35 mL & 24.3 mL then what is the concentration of KOH ?

The distribution constant for compound A between an organic solvent and water is 65. Calculate the concentration of compound A remaining in the aqueous layer after extraction of 50 mL of a 5 X 10-3 M aqueous solution of compound A with the following quantities of the organic solvent: (a) Two 25 mL portions (b) Four 12.5 mL portions

The distribution constant for compound A between an organic solvent and water is 65. Calculate the concentration of compound A remaining in the aqueous layer after extraction of 50 mL of a 5 X 10-3 M aqueous solution of compound A with the following quantities of the organic solvent: (a) Two 25 mL portions (b) Four 12.5 mL portions