A certain liquid X has a normal boiling point of 115.80 °C and a boiling point elevation constant K, 1.76 °C-kg mol Calculate the boiling point of a solution made of 34.5g of alanine (C,H,NO,) dissolved in 450. g of X. Round you answer to 5 significant digits.

Titration of a 86.00mL KOH solution required 398.00 ml of 0.0240 M acetic acid. What is the molarity of KOH solution?

An aqueous solution contains 0.28 M hydrofluoric acid. One Liter of this solution could be converted into a buffer by the addition of: (Assume that the volume remains constant as each substance is added.) (Select all that apply.)   0.14 mol HBr0.28 mol NaI0.29 mol NaF0.14 mol KOH0.29 mol HBr   An aqueous solution contains 0.28 M ammonia. One liter of this solution could be converted into a buffer by the addition of: (Assume that the volume remains constant as each substance is added.)  0.29 mol  NH4ClO4 0.14 mol  HBr 0.29 mol  HBr 0.14 mol  Ca(OH)2 0.28 mol  Ba(ClO4)2

Please calculate the pOH for a 6.65 M solution of a weak base, X with K = 2.77 x 10-4. Please express your answer to in decimal notation with appropriate sig fig. Type your answer...