Acids and Bases

Topic Page

Questions

• How do resonance structures affect acidity?
• How does carbon dioxide change the acid-base condition of a solution?
• Why do strong acids have a low pH?
• Is neutralization a double replacement reaction?
• Why is NaH a strong base?
• Is HBr a strong acid?
• Is HF a strong acid?
• Why does neutralization occur?
• Do strong acids completely dissociate in water?
• How can I calculate pH of weak acid?
• How can I calculate the pH of an acid?
• How can I calculate the pH of a strong acid?
• How do strong acid solutions conduct electricity?
• How do bases react with metals?
• How do acids react with metals?
• How do acids react with carbonates?
• How can I identify a strong base?
• What is the ionization of a strong acid?
• What are some examples of strong bases?
• What is a strong base?
• What is a strong acid?
• What is an example of a neutralization practice problem?
• What are some examples of neutralization?
• What are some examples of acids?
• What are some common mistakes students make with acids and bases?
• What is an acid?
• Question #ee1c0
• Question #72acc
• How do we prove that alcohols are weaker acids than water?
• Question #9be9c
• How do you prove that the equilibrium concentrations of #"H"^(+)# and #"OH"^(-)# are #1.00 xx 10^(-7) "M"# at neutral pH using molar conductivity data at #25^@ "C"#?
• Question #73661
• Why do solutions of a strong acid, and a strong base, which contain equimolar #H_3O^+# and #HO^-#, when mixed give rise to a solution that is #pH# NEUTRAL?
• Question #8d583
• Question #27a2d
• How are the formulas for acids determined?
• What are hydronium and hydroxide ions?
• Where do #"OH"^(-)# and #"H"^(+)# ions come from?
• What is it called when a substance produces hydroxide ions (OH-) in water?
• How would you compare and contrast acids and bases?
• What is an acid, a base, and a neutral substance?
• What are the similarities between acids and bases?
• Are acids and bases equally dangerous?
• What is the difference between Arrhenius, Bronsted-Lowry, and Lewis acids and bases?
• Why are acids and bases corrosive?
• Why are strong acids and bases strong electrolytes?
• How do pH values of acids and bases differ?
• Why is the Bronsted-Lowry definition of acids and bases more encompassing than the Arrhenius definition?
• Are acids and bases covalent compounds or ionic compounds?
• Why is the hydrogen ion (H+) the same as a proton?
• How do acids and bases neutralize each other?
• Why do acids and bases both conduct electricity?
• What is the difference between a Bronsted acid/base and a Lewis acid/base?
• How does ammonia behave as a Bronsted base: #"(i) "NH_3(g) + 7/2O_2(g) rarr 2NO_2(g) + 3H_2O# #"(ii) "2NH_3(g) rarr NH_4^+ +NH_2^(-) # #"(iii) "NH_3(g) + H_3CBr(g) rarr H_3CBr(g) + HBr(g)# #"(iv) "NH_3(aq) +H_2O(l) rarr NH_4^+ + HO^-#?
• Question #90b11
• What is an oxyacid?
• What are the five characteristics of a base?
• How do you name acids?
• How should you dilute concentrated acid?
• HCl ,CH3COOH, HNO2,NH3,KOH, pyridine. Write as many salts formula. For each salt,write chemical equation when salt dissolved in water. Is the solution acidic neutral or basic ?
• How to predict whether the aqueous solution for the following salts are acidic , basic or neutral (a)NH4Br (b)KClO4 (c)NaHC2O4 (d)CsBr (e)KHSO4 (f)[CH3NH3]Cl?
• Metal carbonates (such as: CaCO3, Na2CO3 etc) are ACIDIC in nature or BASIC? Thanks
• What is the base in #HCl + KOH -> H_2O + KCl#?
• Question #03978
• Question #cc70a
• Why AMMONIA GAS (NH3) is an alkali/base?
• Question #11bdf
• Identify how alcohols can be acidic?
• Why is the normal boiling point of #HF# (#19.5# #""^@C#), so high compared to that of #HCl# (#-85.0# #""^@C#)?
• Question #6181b
• Is NaOH an acid or base?
• What is are acids, bases and salts?
• Is blood an acid or a base?
• What is an acid? What is a base?
• Water is formed from the reaction of an acid and a base. Why is it not classified as a salt?
• What is the difference between an acid and a base?
• What is an acid, base, and neutral?
• What happens when you mix an acid and a base together?
• What happens when an acid and base react?
• What are the similarities and differences between acids and bases?
• Is water an acid or a base?
• How are salts formed from acids and bases?
• How can you tell the difference between an acid and a base given this chemical equation: #C_5H_5N + H_2O -> C_5H_5NH^+ + OH^-#?
• What does an acid + a base create?
• What are the characteristics of an acid? A base?
• Describe what occurs to the pH of a solution if an acid is added to it. What happens to the pH of the solution when the ratio of base is equal to the amount of acid?
• What is an acid and base reaction?
• What defines an acid and base?
• How do you test for acids and bases?
• How do you conjugate acid and base?
• How does an acid differ from a base?
• How do you safely mix acids and bases?
• How do acids and bases differ?
• How do acid and bases react?
• How do acid base indicators work?
• How does an acid-base buffer system function?
• What are some examples of acid and base?
• How are acids and bases different?
• Question #ccd80
• Question #ca849
• If a solution has a #[H^+]# concentration of #4.5 * 10^-7# #M#, is this an acidic or basic solution?
• What is the molar concentration of #"78% w/w"# #HCl(aq)#?
• If the poH of a solution is 10, what is the pH of this solution? Is this solution acidic or basic?
• What are 5 household bases?
• What are the four kinds of nitrogen bases in DNA?
• How are acids named?
• What kind of salt (acidic or basic) is #Zn(CH_3COO)_2# solution?
• Why is #Na^+# a WEAKER Lewis acid than #Fe^(3+)#?
• How would you use the Henderson–Hasselbalch equation to calculate the pH of each solution?
• How is the Henderson-Hasselbalch equation used to calculate the ratio of #H_2CO_3# to #HCO_3^-# in blood having a pH of 7.40?
• What is the Henderson-Hasselbalch equation? How is it used in chemistry?
• When is the Henderson-Hasselbalch Equation used?
• How do you calculate PKa using the Henderson-Hasselbalch equation?
• Why does pH = pK when pH = 7?
• How would you write the Henderson-Hasselbalch equation for a solution of propanoic acid (#CH_3CH#2CO#2H#, pKa = 4.874 ) using HA, A–, and the given pKa value in the expression?
• Using Henderson-Hasselbalch equation, how do you find pH of a solution that is 11.5g HF and 22.5 g NaF in 125 ml of solution?
• How do you predict the pH of a buffer solution using the Henderson-hasselbalch equation?
• How does #"chlorate"# oxidize hydrazine to give #NO# and chloride anion?
• What is the difference between a binary acid and a polyatomic acid?
• What is produced when an acid reacts with water?
• What is the concentration of OH- in pure water?
• Why is iodic acid a stronger acid than nitric acid?
• Question #f6709
• Question #96f09
• What do lemons, tomatoes, and coffee all have in common chemically?
• Is #HF# a strong acid or weak?
• Is #HF# a strong acid in water?
• Why is #HF# a strong acid?
• Why is #HCl# a stronger acid than #HF#?
• Why is #HF# a weak acid and #HCl# a strong acid?
• What would happen to a weak base dissociation equilibrium if more products were added?
• What happens when an acid reacts with an active metal?
• What kind of reaction occurs when you mix aqueous solutions of barium sulfide and sulfuric acid?
• Is #NaHCO_3# an acid or base?
• Is #NH_3# a weak or strong base?
• Is #KOH# an acid or base?
• Is hydrochloric acid (HCl) a strong acid or a weak acid? Does it dissociate completely or partially?
• Is hydrochloric acid a strong or weak acid?
• Is HCL a strong acid as concentration increases?
• Can you identify the following as weak acid, strong acid, weak base, strong base, or neutral? How do you determine this?
• Is acetic acid a weak acid or strong acid? Why?
• Is HCl is a strong base or acid?
• Why is HCl a strong acid but not HF? Is it because of the electronegativity of Flourine?
• What is the Ka of a strong acid like HCl?
• Which is the strongest acid among these: #HBr#, #HF#, #HI#, and #HCl#?
• Which is a stronger acid: #HCl# or #HF#?
• Why is HF a weak acid, and not a strong acid?
• What is the pH of a .043 M #HCl# solution?
• What is the pH of a .073 M #HCl# solution?
• What is the pH of a .013 M #HCl# solution?
• What is the pH of a 0.0453 M #HCl# solution?
• What is the pH of a 0.090 M #HCl# solution?
• HCl is a strong acid. What is the pH of 200 mL of 0.002 M #HCl#?
• HCl is a strong acid. What is the pH of 100 mL of 0.003 M #HCl#?
• What is the pH of 300 mL of 0.007 M #HCl#?
• Which is a stronger acid: acetic acid or hydrochloric acid?
• What happens when hydrochloric acid is added to water? Why is heat given off?
• What makes #HCl# a strong acid?
• What properties make #HCl# a strong acid?
• Is #HCl# a strong acid or strong base? How is the determined?
• How do you know #HCl# is a strong acid?
• How does #HCl# act as a strong acid?
• If #HCl# is a strong acid, what is its Ka?
• What makes hydrochloric acid a strong acid?
• Is #HCl# a strong acid than #HF#?
• Why is hydrochloric acid (#HCl#) classified as a strong acid?
• What does a water molecule that loses a hydrogen ion become?
• Sodium hydroxide (#NaOH#) is classified as a strong base. For every mole of sodium hydroxide added to a large volume of water, one mole of what ion enters the solution?
• #H_2O(l) + NH_3(aq) -> OH^(-) (aq) + NH_4^+(aq)# Why is ammonia a base in this reaction?
• Why is ammonia considered a base?
• When ammonia, #NH_3#, dissolves in water, hydrogen ions are translerred from the water to ammonia to form ammonium ions and hydroxide ions. Ths reaction can be seen below. Why is ammonia a base in this reaction?
• Which would cause more damage to skin, conc. hydrochloric acid, or dilute hydrochloric acid?
• What is the #pH# of concentrated #HCl(aq)#?
• Five solutions were prepared by dissolving 0.00100 mole of each of the following compounds in enough water to make 1.000 liter of solution. Which one of these compounds would make the most acidic solution? Why?
• What is the specific term given to a substance which forms from the addition of an acid and a base?
• Is #CaCO_3# acidic, basic, or neutral?
• Wha is the name of #HBr# (in water)?
• Is it possible for acids to have a #"pH"# above #7#? If so, under what circumstances would that be?
• What is produced when an acid and an alkali react?
• What is the %-ionization in a 0.20M solution of a weak acid, HA?
• Which of these is NOT true?
• Question #9698a
• Question #a87b0
• How do you write the chemical equation and the #K_a# expression for the acid dissociation of the following acids in aqueous solution?
• In what order should strong acids and water be mixed?
• What is the pOH of a #4.8xx10^(-10) M# #H^+# solution?
• What is the pOH of a #7.9x10^-4 M# #OH^-# solution?
• What is the pOH of a #8.4x10^-11 M# #OH^-# solution?
• Question #a1b3d
• What would happen if OH-ions were added to a very basic solution?
• Question #129cc
• What is acidic soil caused by?
• Question #0ed49
• Which pH is more acidic, a pH of 3, a ph of 7, or a ph of 9?
• Given #1*mol*L^-1# concentrations of #"hydrochloric, acetic, and formic acids"# in water, can you rank the solutions in order of INCREASING #pH#?
• Question #915cb
• What is the definition of lactic acid?
• If #pK_a=7.4#, what is #pK_b#?
• A lake has a pH of 3.5. Is it acidic or basic? Would fish be healthy in this lake?
• How does #"calcium carbide"# react with #"water"#?
• For which equation, does the enthalpy of reaction represent #DeltaH_f^@# for methanol? #1.# #CO(g) + 2H_2(g) rarr CH_3OH(l)# #2.# #C(g) + 2H_2O(g) rarr CH_3OH(l)+1/2H_2(g)# #3.# #C(s) + 2H_2(g) +1/2O_2(g) rarr CH_3OH(l)# #4.# #C(g) + 2H_2(g) rarr CH_3OH#
• How do I identify an amphoteric compound based on the acid form?
• What does chloride ion do in aqueous solution?
• What is the acid principle in water? Is there such a thing as #H^+#?
• Question #72592
• Oxides of most metals combine with water to form what?
• Is #K_3PO_4# basic?
• Is #KCl# basic?
• Is #NH_4ClO_4# acidic?
• Question #277a0
• Question #27010
• How many protons can an acetic acid #CH_3COOH#molecule donate in an acid-base reaction?
• Is the danger associated with #HC-=N# solutions associated with its acidity?
• When you have an upset stomach, you might take an antaci to feel better. Based on the properties of an antacid, explain why an antacid can be an effective remedy?
• Question #c25b3
• What is a substance that can behave as an acid or a base?
• Are protons donors? Do they increase the concentration of #H^+#(aq) in solution?
• Why do would a mineral such as calcite fizz when a weak acid is dropped on it?
• What is the most manufactured acid?
• Question #c255c
• The following questions concern acids and basis?
• How are bases named?
• When the name of an anion that is part of an acid ends in #-ite#, the acid name includes what suffix?
• With respect to acids, what do we mean by #"ionization"#?
• Question #ad049
• Why is normal, unpolluted rain water acidic?
• How do we assess the strength of an acid?
• How does the strength of an acid relate to the magnitude of the equilibrium constant #K_a#?
• How does acetic acid behave as an acid in water?
• How is the equilibrium reaction between water and strong acids, and water with weak acids, represented?
• How does the behaviour of a strong acid in water compare to that of a weak acid when both are dissolved in water?
• What are two common acids and two common bases that you might find around the home?
• Question #9329f
• Why might a small piece of chalk reduce acid indigestion?
• What is a strong acid? Strong base?
• When a chemical loses a hydrogen ion, is it behaving as a chemical or a base? What is meant by "behaves as"?
• Why does calcite fizz when it comes in contact with hydrochloric acid?
• What part of an amino acid changes to create different amino acids?
• Question #7e34e
• Where do you find formic acid?
• Will #"rubidium acetate"# give a neutral, acidic, or basic solution upon dissolution in water?
• What is the entity of an acid? (A formula unit?)
• What is the basic formula for a binary acid?
• Question #fe979
• Why will 2M HCl burn a hole in your shirt whereas the same concentration of acetic acid (vinegar) will not?
• Question #7231b
• What are some of the possible hazards of working with a 0.50 M NaOH solution?
• How is carbonic acid formed?
• Is nitric acid the strongest acid and acetic acid the weakest?
• What is the old and new chemical name for vinegar and name the family of salts obtained from this acid?
• What is the acid in the stomach?
• What is an example of an antacid?
• What bases are considered pyridamines?
• Why is #ZnCl_2# is an acid though it does not have a #H^+# or a #OH^-#?
• What are some common acids?
• Question #67633
• How do you write an equation showing how HCl, which is a molecular substance and strong acid, could give ions when added to water?
• Is #"2-dimethylethanoic acid"# a valid formula?
• Question #3c3cc
• What is the name for the acid #H_3PO_4#?
• What can be added to soil to reduce acidity?
• Like acids, alkalis are what?
• How is acid/base chemistry defined and represented in aqueous solution?
• Is ch4 an acid or base?
• Question #75b51
• Question #79b65
• Question #aceca
• Question #3b048
• An acid is added to NaOH in a neutralization reaction that produces water and NaCl as products. What is the acid?
• What does it mean to say that a base is an electrolyte?
• If an acid is added to water, what would be the expected direction of the change in the pH of the water?
• When naming an acid, what does the prefix hydro tell you?
• Imagine that a new polyatomic anion called "platoate" is invented. What would an acid of "platoate" be named?
• What is acid with two ionizable protons?
• How do we decide whether salts are weak acids or weak bases?
• Question #300fd
• If an aqueous solution has an #H_3O#, concentration of #5.4 xx 10^9 M#, is the solution acidic, basic, or neutral?
• An acid with a small Ka value would be what type of acid?
• Question #bc883
• Which is the unsaturated acid: #"A. diacetic acid; B." H_3C(CH_2)_14CO_2H; "C. oleic acid; D. arachidic acid?"#
• What is a diprotic acid?
• What is a mesure of the acidity of a compound?
• Is 7up acidic?
• What do we mean by writing #H_3O^+#?
• Can someone please thoroughly explain titrations and their graphs? Thank you!
• What is the safe way to dispose of an acidic solution?
• Question #889ec
• Why is nitric acid (#HNO_3#) important?
• What is an acronym to remember the weak acids?
• Question #770d1
• When the name of an anion that is part of an acid ends in -ite, what does the acid name include?
• How are bases named?
• When is carbonic acid produced?
• How do we define concentration?
• Which acid and which base would you combine to form the salt aluminum sulfate, #Al_2(SO_4)_3#?
• What are hydroxide ions produced by?
• If the #K_a# of a monoprotic weak acid is #8.1 times 10^-6#, what is the pH of a 0.33 M solution of this acid?
• What are the names of these binary acids: #HCl# and #H_2S#?
• Is #HNO_2# considered a strong or weak acid?
• How is the concentration of H+ lons related to the concentration of OH- ions for a substance?
• Question #5ee74
• Why should you never add potassium to hydrochloric acid?
• Why is it possible to have a concentrated weak acid?
• Question #65af7
• Question #0a540
• What are some names for the acid and the base that could be used to make copper sulfate?
• Question #f4d64
• What is an acid that contains hydrogen and only one other element?
• What donates a hydrogen ion?
• What contains more #OH#- ions?
• Why is phenylamine a weak base?
• How do the hydrogen halides dissolve in water, and how does such dissolution lead to acidity? How do we express these concentrations?
• Question #60f02
• Is #H_2O# a base or acid?
• If the hydrogen ion concentration of a solution is #10^-10#M is the solution acidic, alkaline, or neutral?
• In the reaction #CO_3^(2-) + H_2O rightleftharpoons HCO_3^- + OH^-# what is the carbonate ion acting as?
• Question #fb7bc
• What is an acronym or pnemonic to remember the strong bases?
• Stomach acid has a pH of about 2. What is the pH of an antacid that is used to neutralize stomach acid?
• Question #9ac80
• Question #b80e9
• Question #36628
• Is HCN cyanic acid or hydrocyanic acid?
• What is an example of a Bronsted-Lowry conjugate acid-base pair?
• Why is acetic acid called weak acid?
• What is the difference between the pH of a weak acid compared to the pH strong acid of the same concentration?
• How do acids become alkaline over time? In the experiment a zinc washer was added to hydrochloric acid. The first pH read 0 and at t=14 days, it read 5. Why?
• Is #"hypophosphoric acid"# an #"oxy-acid"#?
• Which is the more powerful base, sodium hydroxide, or sodium methoxide?
• Question #f679d
• Question #ee8bb
• Which solution would give the largest #pH#? #a.# #HCl(aq)# #b.# #NaHSO_4(aq)# #c.# #HBr(aq)# #d.# #HNO_3(aq)#
• Which is the best acid-base indicator?
• What is an acid?
• Are there actual #H^+# or #H_3O^+# ions in aqueous solution?
• Why is aspirin considered to be a weak acid and how can you measure the exact pH?
• In which acid can dissolve AgCl?
• Question #f7751
• What would occur if a student used a pipette, and sucked up a volume of dilute hydrochloric acid?
• Why is #"phenyl sulfonic acid"# a STRONGER acid than #"benzoic acid"#?
• Does #"H"_4"O"_2^(+)# exist in water?
• A #0.100 M# solution of chloroacetic acid (#ClCH_2COOH#) is #11.0%# ionized. Using this information, calculate #[ClCH_2COO^−]# and #[H^+]#?