Concept explainers
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Interpretation:
A prediction about the ions and molecules will be present in
(b)
Interpretation:
A prediction about the ions and molecules will be present in
(c)
Interpretation:
A prediction about the ions and molecules will be present in
(d)
Interpretation:
A prediction about the ions and molecules will be present in
(e)
Interpretation:
A prediction about the ions and molecules will be present in
(f)
Interpretation:
A prediction about the ions and molecules will be present in
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Chemistry: The Molecular Science
- A solution of sodium cyanide, NaCN, has a pH of 12.10. How many grams of NaCN are in 425 mL of a solution with the same pH?arrow_forwardThe pH scale for acidity is defined by pH – log10 H*| where |H*| is the concentration of hydrogen ions measured in moles per liter (M). (A) The pH of Drano is 13.3. Calculate the concentration of hydrogen ions in moles per liter (M). [H*] = M (B) The pH of rain water is 5.5. Calculate the concentration of hydrogen ions in moles per liter (M). [H*] = Marrow_forwardArrange the following bases (in descending order) according to the volume of each that will react with 1 L of 1 M HCl (a) 1 M NaOH (b) 1.5 M Ca(OH)2 (c) 2 M KOH (d) 0.6 M Ba(OH)2arrow_forward
- Determine the molar concentration of each ion present in the solutions that result from each of the following mixtures: (Disregard the concentration of H+ and OH- from water and assume that volumes are additive.) (a) 57.4 mL of 0.79 M HCl and 77.3 mL of 1.48 M HCl: (b) 120 mL of 0.59 M CaCl2 and 120 mL of 0.27 M CaCl2 (c) 31.9 mL of 0.369 M NaOH and 20.2 mL of 0.278 M HCl (d) 14.0 mL of 0.724 M H2SO4 and 20.3 mL of 0.110 M NaOHarrow_forwardA student is provided with a 0.1 M stock solution of NaOH. Student was then asked to mix 50.0 mL of this stock solution of NaOH with 450.0 mL of water to prepare a dilute solution of NaOH. (A) Calculate the molarity of the diluted solution. (B). Calculate the hydronium ion concentration, [H3O+] in the final diluted solution. (8 points) (C ) Calculate the pH of the diluted NaOH solution. (D) Is the final diluted solution acidic, basic or neutral?arrow_forwardDetermine the molar concentration of each ion present in the solutions that result from each of the following mixtures:(Disregard the concentration of H+ and OH- from water and assume that volumes are additive.) (a) 47.9 mL of 0.85 M HCl and 77.6 mL of 1.51 M HCl M H+= M Cl-= (b) 125 mL of 0.63 M CaCl2 and 125 mL of 0.22 M CaCl2 M Ca2+= M Cl-= (c) 31.0 mL of 0.333 M NaOH and 22.7 mL of 0.241 M HCl M Na+= M Cl-= M H+= M OH-= (d) 10.4 mL of 0.602 M H2SO4 and 21.5 mL of 0.151 M NaOH M Na+= M SO42-= M H+= M OH-=arrow_forward
- The major component of vinegar is acetic acid, CH3COOH. Its Ka is 1.8 × 10-5 . One student used 1.000 M NaOH to titrate 25.00 mL vinegar. At the end point, 21.82 mL NaOH was used. (a) What is the concentration of CH3COOH in vinegar? (b) What is the pH of the solution at the end point? (c) What indicator(s) the student should use in this titration? Explainarrow_forward10 mL of a solution of NaOH is found to be completely neutralized by 8 mL of a givensolution of HCl. If we take 20 mL of same solution of NaOH, the amount of HCl solution required to neutralize it will be:(a) 4 mL(b) 8 mL(c) 12 mL(d) 16 mLarrow_forwardA road tanker carrying an acid was involved in an accident and its contents spilledon the road, iron drain covers began melting and fizzing as the acid ran over them. ASpecialist was called to se if the acid actually leaked into the nearby river.(a) Explain how the specialist could carry out a simple test to see if the river water contains some acid or not.(b) The word melting is incorrectly used in the report. Suggest a better name that should have been used.(c) Explain why drain covers began fizzing as the acid rain over them.arrow_forward
- Answer the following by selecting all correct answers. (a) Dynamic equilibrium O is a condition where two opposing processes are occurring at the same rate. O can only occur in water. O is used to describe what happens when weak acids or weak bases are added to water. O is used to describe what happens when strong acids or strong bases are added to water. (b) What will happen if acetic acid (HC2H3O2) is added to water?arrow_forwardDetermine the molar concentration of each ion present in the solutions that result from each of the following mixture: (Disregard the concentration of H+ and OH- from water and assume that volumes are additive.) (d) 10.8 mL of 0.649 M NaCl and 21.7 mL of 0.177 M Ca(C2H3O2)2arrow_forward24. A solution of volume 0.500 L contains 1.68 g NH3 and 4.05 g (NH4)2SO4. (a) What is the pH of this solution? (b) If 0.88 g NaOH is added to the solution, what will be the pH? (c) How many milliliters of 12 M HCl must be added to 0.500 L of the original solution to change its pH to 9.00?arrow_forward
- Chemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage Learning