s. Calculate the following from the geiven values (3 proints eadh A ny CA) A sol
ID: 105020 • Letter: S
Question
s. Calculate the following from the geiven values (3 proints eadh A ny CA) A solution has a plt 3.63 measured by using a pl mete (Use need a scientific calculator a) What is the hydrogen ion concentrations b) What is the pOtl of this soluation b) Is this solution acidic, basic or neutral A laboratory solution has a concentration of a) What is the pl b) c) Is this solution acidic, basic or neutral ? in this solution H- (B) ution has a concentration of hydrogen ions as t 11- 10 What is the pH of this solution? pH What is the pOH of this solution poll_ Bonus Question: (4 points) ume was measured by displacement of water using a graduated cylinder Mass of a metal Volume of water 40.1 mL Volume of water and metal 43.7 mL A student t measured and recorded the following data for a density experiment of a metail. 25.55 g Calculate the density of the metal. Show all work including calculator value and the final value. Calculate the volume of the metal. Show your work.Explanation / Answer
Ans 8 :
A) a) The [H+] is given as 10-pH
[H+] = 10-3.63
= 2.3 x 10-4 M
b) pH + pOH = 14
pOH = 14 - 3.63
pOH = 10.37
c) The solution is acidic , as the pH of the solution is less than 7.
B) a) pH of the solution is given as , pH = -log [H+]
pH = -log (1.0 x 10-11)
pH = 11
b) pOH = 14 - pH
pOH = 3
c) The solution is basic as the pH of the solution is more than 7.
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