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Can you please try to answer these four questions for me? 3 pts Question 22 20.0mL...
can someone please help me with this 3 questions?
What is the molar solubility (in mol L') of a salt in pure water with general molecular formula MX2 (where M is a cation and X is an anion) that has Ksp = 7.70 x 10-9? You have 5 attempts at this question. Remember: if you want to express an answer in scientific notation, use the letter "E". For example "4.32 x 10" should be entered as "4.32E4". Answer: Check What...
1.A) A 29.8 mL solution of 0.298 mol L-1 HCl is titrated using 0.173 mol L-1 NaOH.What volume of NaOH (in mL) is needed to reach the equivalence point in this experiment? Remember you can find KA and/or KB values in your textbook in chapter 15. B) A 10.1 mL solution of 0.100 mol L-1 NaOH is titrated using 0.150 mol L-1 HCl. What will be the pH of the solution after 4.07 mL of the HCl solution is added?...
1 a) What is the molar solubility (in mol L-1) of a salt with general molecular formula MX2(where M is a cation and X is an anion) in a solution already containing 0.230 mol L-1 X-? The Ksp of MX2 = 3.88 x 10-5 ? b) Consider a 1.0 L buffer containing 0.097 mol L-1 CH3COOH and 0.106 mol L-1 CH3COO-. What is the pH of the solution after adding 4.0 x 10-3 mol of NaOH? Express your answer to...
Please explain the correct
answer for both questions. Thank you!
Incorrect Question 7 0/1 pts The concentration of iodide ions in a saturated solution of lead (11) iodide is_ The solubility product constant of Pblz is 1.4x10-8. 3.5x10-9 3.0x10-3 1.5x103 1.4x10-8 3.8x10-4 Incorrect Question 9 0/1 pts The molar solubility of lead () chloride (PbCl2) is 1.6x102 M. What is the Ksp of PbCl2? 4.1x10-6 5.0x10-4 1.6x10-2 3.1x107 1.6x10-5
please show work for 3 & 4
Question 3 1 pts Given that the solubility of Ba(OH)2 is 30.2 g L-?at 233°C calculate the Ksp of barium hydroxide. Report your answer to 4 decimal places. Question 4 Calculate the solubility (in grams per liter) of Fe(OH)3, which has a Kse of 7.38 x 10-15 at a given temperature. Report your answer to 3 significant digits, but do NOT include units.
NEED help with these questions
Question 1 (1 point) Saved The Ksp of PbCl2 is 1.2 x 10-5. What is its molar solubility? 0.72M 1.32M 0.0023 M 0.0022 M 0.018 M 0.12 M 0.014 M 0.0017 M Question 2 (1 point) Saved MacBook Cquivalent point pH, 8.72 pH ONWAOO! IT 0+TT 0 5 10 15 20 25 30 35 40 45 50 Volume of 0.100 M NaOH added (mL) For the titration curve above, what is the Ka of the...
Question i 1 pts If a solid AB2 is added to water, and at equilibrium the concentration of A2 is 2.46 x10 Swhat is the solubility product Ksp of AB2? Report answer as pKsp log Ksp Question 2 1 pts What mass of AgCI will dissolve in 1.00 L of water containing 0.081 moles of NaCI? Ksp of AgCl is1.7x 1010 Report your results as a log value, for example if your answer was 5.13 x 107, -log 5.13 x...
Can you please try to answer these four questions for
me?
Which solution would you expect to have the highest boiling point? 0.100 m Naci 0 0.100m CH3OH O 0.100 m MgCl2 O 0.100 m AICI: O pure water A calibration standard has a concentration of 0.250 M. It is found to have an absorbance of 1.256. An unknown solution has an absorbance of 0.875, what is it's molarity? Which solution would you expect to have the lowest boiling point?...
2. Calculate y, and report the result with the correct number
of significant figures and the absolute error: y-251(+-1) x
860(+-2) / 1.673(+-0.006)
Its
question #2 i typed it out you do not need the picture
The question is to Calculate Y, and report the result with the
correct number of significant figures and the absolute error:
y=251(+-1) x 860(+-2) / 1.673(+-0.006)
3
sig figs
(10 points) Calculate the pH of a solution that is 0.04 M in NH, and...
In need of help 1 – List four factors that affect the strength of an acid. All four may not apply to every acid. 2 – Calculate [OH-] for a 1.4 x 10-3 M HCl solution. 3 – Calculate the pH of an aqueous solution at 25 ̊C at is 0.34 M in phenol (Ka = 1.3 x 10-10) .4 – Calculate the concentration at which a monoprotic acid with Ka = 4.5 x 10-5 will be 2.5% ionized. (The...