Viv

This page lists questions and answers that were posted by visitors named Viv.

Questions

The following questions were asked by visitors named Viv.

A 0.30M solution of a weak monoprotic acid is 0.41% ionized. what is the acid-ionization constant, Ka for this acid? Use. HA + H2O <==> H3O + A to figure out X for H3O and A
12 years ago
What is the hydrogen-ion concentration of a solution that is 0.016M in acetic acid and 0.016M in sodium acetate at 25 Celsius? The Ka for acetic acid is 1.8x10^-5
12 years ago
What is the hydronium ion concentration of a buffer solution that is 0.10M NaHPO4 and 0.50M NaH2PO4? For H3PO4,Ka1=6.9x10^-3, Ka2=6.2x10^-8, Ka3=4.8x10^-13
12 years ago
What molar ratio of acetic acid to sodium acetate is required to create a buffer solution having a pH of 4.83 at 25 Celsius? Ka for HC2H3O2 is 1.8 x10^-5 a)0.82 b)0.55 c)3.5 d)1.2 e)2.0 The answer I got was 8.2 ..(help!)
12 years ago
At the normal boiling point of toluene,Δ Hvap=33.2 kJ/mol and ΔSvap= 86.5J/mol•K. What is the normal boiling point of toluene?
12 years ago
The enthalpy of vaporization of chloroform (CHCl3) is 29.2 kJ mol-1 at its normal boiling point 61.2 Celsius. what is the standard change in entropy for vaporization of chloroform at its normal boiling point? Answer I got was 29.2/334.2 = 0.0873. (CORRECT...
12 years ago
Solubility of Silver(I) Carbonate is 3.2x10^-2 g/100mL What is the Ksp? I'm getting 2.19x10^-12 But it's not in the answer sheet
12 years ago
regarding retailing in developing countries briefly describe a traditional retail system and its main characteristics
9 years ago
On Tuesday Shanice bought five hats. On Wednesday half of all the hats that she had were destroyed. On Thursday there were only 17 left. How many did she have on Monday.
6 years ago
Hello! I need to write an essay on the topic of contestability, I've decided to focus on the cold war but I am struggling to come up with an essay question and formatting/structure. My ideas right now for questions include: Was the Cold War inevitable? Do...
5 years ago
3/8 of the fruits are yellow mangoes and 2/8 are green mangoes.Mangoes makes what fraction of the fruits? What is asked for in the problem? What facts are given? How will you solved the problem? How is the solution done What is the answer to the problem?
3 years ago

Answers

The following answers were posted by visitors named Viv.