amanda1012
This page lists questions and answers that were posted by visitors named amanda1012.
Questions
The following questions were asked by visitors named amanda1012.
What is ΔG at body temperature (37.0° C) if the concentration of A is 1.7 M and the concentration of B is 0.50 M?
13 years ago
What is the silver ion concentration in a solution prepared by mixing 433 mL of 0.356 M silver nitrate with 467 mL of 0.574 M sodium phosphate? The Ksp of silver phosphate is 2.8 × 10^-18
13 years ago
What is the acceleration of a projectile fired vertically upwards? Is it positive or negative? Vertically downwards?
13 years ago
Determine the pH of a solution containing 0.045 M NaOH and 0.025 M KI: With activities: Without activities:
13 years ago
The Ka of a monoprotic weak acid is 3.39 × 10-3. What is the percent ionization of a 0.125 M solution of this acid? I just do not know where to even start...
13 years ago
Use activity coefficients to find the concentration of hydrogen ions in a solution of 70.0 mM butanoic acid and 0.1 M NaCl. The ionization constant of butanoic acid is Ka = 1.52 × 10-5. Take the size of C3H7COO– to be 500 pm.
13 years ago
A solution of the primary standard potassium hydrogen phthalate, KHC8H4O4, was prepared by dissolving 0.4877 g of potassium hydrogen phthalate in about 50 mL of water. Titration with a KOH solution required 36.21 mL to reach a phenolphthalein end point. W...
13 years ago
Zn|ZnCl2(0.00165 M)||CuSO4(0.0125 M)|Cu Find Ecell taking activities into account.
13 years ago
Answers
The following answers were posted by visitors named amanda1012.
I figured it out. I had to use a ΔG° from a previous problem.
13 years ago
Thank you so much!!!
13 years ago
I am doing something wrong in my calculations. For ?M I have 0.24 My equation is: 2.8*10^(-18) = (3x)^3 * (x+0.24)
13 years ago
I figured out what I was doing wrong! I have the right answer! Yay!
13 years ago
That is what I was thinking. I just was not sure if firing the object made a difference.
13 years ago
Oh, ok! I was over thinking the problem!!! Plus a fever may not help with my problem solving abilities... Thank you!
13 years ago
My biggest problem is knowing where to start. So I calculate the ionic strength then the activity coefficients. Then do I just "plug and chug"
13 years ago
Thank you!
13 years ago
Oh I was doing 1:2 ratio instead of 1:1... That is where I went wrong! When I recalculated it with 1:1 I got 0.066628 M
13 years ago