Calculate the concentration of an aqueous solution of 0.0087M NO2- in ppm. (Make sure to express in correct number of sig figs)
Calculate the concentration of an aqueous solution of 0.0087M NO2- in ppm. (Make sure to express...
1. Calculate the concentration of an aqueous soution of NaOH that has a pH of 12.09 express answer using 2 sig figs 2. Calculate the concentration of an aqueous solution of Ca(OH)2 that has a pH of 12.91 express answer using 2 sig figs. 3. Calculate the concentration of an aqueous solution of Ca(OH)2 that has a pH of 12.39 express answer using 2 sig figs
Express the concentration of a 0.0880 M aqueous solution of fluoride, F, in mass percentage and in parts per million. Assume the density of the solution is 1.00 g/mL. Number Number 0 0 ppm
Express the concentration of a 0.0550 M0.0550 M aqueous solution of fluoride, F−,F−, in mass percentage and in parts per million (ppm). Assume the density of the solution is 1.00 g/mL. mass percentage: ppm:
An aqueous solution at 25 degrees C has a OH− concentration of (1*10^-9 M). Calculate the H3O+ concentration. Be sure your answer has the correct number of significant digits.
The estimated average concentration of NO2 in the air in theUS in 2006 was 0.016 ppm. (a) Calculate the partial pressure of the NO2 in a sample of this air when the atmospheric pressure is 755 torr (99.1kPa). (b) How many molecules of NO2 are present under these conditions at 20 C in a room that measures 15 x 14 x 8 ft? Please go in detail with question B. I'm not sure how to incorporate room measurements, Thanks!
Calculate the concentration of H+ in a solution that has a pH of 8.23. Give your answer to 2 sig figs.
Interconverting hydronium and hydroxide concentration at 25'C An aqueous solution at 25 °C has a H3O. concentration of 0 84 M. Calculate the OH-concentration. Be sure your answer has the correct number of significant digits.
What is the molar concentration of K+ in an aqueous solution that contains 793 mg/L (ppm) of K3Fe(CN)6? Do not use scientific notation in your answer.
Express the concentration of a 0.0800 M aqueous solution of fluoride, F
Problem 3 (8 points). The pH of an aqueous solution of formic acid (HCOOH) is 2.771. What is the initial molar concentration of HCOOH, if its acid ionization constant is K = 1.78*10*? Enter your answer in the box provided with correct units and sig. figs.: Answer: The initial molar concentration of : [HCOOH) = formic acid is