Acid-base titrations. ( + ½ of the marking on the glassware). Here we are going to focus on titration problems in chemisry. Up Next. 6) Write the names for the following acids and bases: a) KOH potassium hydroxide b) H2Se hydroselenic acid c) C2H3O2H acetic acid d) Fe(OH)2 iron(II) hydroxide e) HCN hydrogen cyanide or hydrocyanic acid 7) Write the formulas for the following chemical compounds (remember, you’ve still got a pop quiz coming up before the end of next week!) HNO3 and NO3-1 make one pair OH-1 and H2O make the other. Q. ________ means the same thing as alkaline. List some causes of respiratory acidosis: Acidosis caused by insufficient HCO3- levels is called ___ acidosis, and if there is any compensation it is done by the ___ system. This is a quiz I create in order to use for my project in my science class. Lactic acid, pH =2.5 is a (strong/weak) acid. Acid & Base Lab Objective: Acids and bases are very common. More information and offline downloads. ____ is slower, taking minutes. Test the pH of things like coffee, spit, and soap to determine whether each is acidic, basic, or neutral. acid base conjugate acid conjugate base of H 2 O of HCl The conjugate acid is the species formed when a Brønsted-Lowry base accepts a proton from a Bronsted-Lowry acid. Assemble the apparatus for titration A successful experiment starts with good preparation. As the pH increases the hydronium ion concentration decreases. The conjugate base is the species that remains after the Brønsted-Lowry acid has lost a proton. Identifying all of the molecules and ions that are present in a given acid or base solution. Activities. Start studying Chapter 6 Acids, Bases and Solutions Test. Use your knowledge of these three theories to describe NaOH as an Arrhenius base, a Brønsted-Lowry base, and a Lewis base. Name: _____ Block: _____ Date: _____ Online Acid/Base lab: Go to: and click the play button. The kidney's role in pH regulation is relatively (slow/fast). Or you can design your own liquid! Name the 3 types of chemical buffer systems in the body. Switch between logarithmic and linear scales. Acid-base indicators, such as litmus and red cabbage juice, turn different colors in acidic and basic solutions. pOH: 2.7 pH: 11.3 5) What is the pH and pOH of a solution with a volume of 5.4 L that contains 15 grams of hydrochloric acid and 25 grams of nitric acid? This trivia quiz is based on the titration problem of acids and bases that we learned and had some practice in the lab this week. pH: 2.9 pOH: 11.1 2) What is the pH and pOH of a 2.34 x 10-5 NaOH solution? 4. The only strong acid (pH 1) found in the body is ______ and is found in the _______. The concept of pH is widely used in all areas of science including agriculture, biology, engineering and medicine. 5.8 pH acid 2. Learn vocabulary, terms, and more with flashcards, games, and other study tools. How about 0.5L? Which of the following will produce stronger electrolyte solutions, strong acids and bases or weak acids and weak bases? Relating the strength of an acid or base to the extent to which it dissociates in water 2. __________ (chemical formula) is carbonic acid. pH: 1.6 pOH: 12.4 4) What is the pH and pOH of a solution that was made by adding 400 mL of water to 350 mL of 5.0 x 10-3 M NaOH solution? I Placed 2 Drops Of Each Chemical In The Corresponding Rows/columns Of The Well Tray. Solubility equilibria. Using the following k values, label the k values for each reaction: (ka1 = 5 x 10-3, ka2 = 8 x 10-8, ka3 = 6 x 10-10) H3AsO4(aq) (( H2AsO4-1(aq) + H3O+1(aq) ka1 = 5 x 10-3 H2AsO4-1(aq) (( HAsO4-2(aq) + H3O+1(aq) ka2 = 8 x 10-8 HAsO4-2(aq) (( AsO4-3(aq) + H3O+1(aq) ka3 = 6 x 10-10 9) Using the following Ka values, place the following acids in order of increasing acid strength. Learn vocabulary, terms, and more with flashcards, games, and other study tools. The lab allows students to select from hundreds of standard reagents (aqueous) and manipulate them in a manner resembling a real lab. Welcome to Acid and Bases test. Substances that donate hydrogen ions H+are called ________. (true/false) Excess vomiting or diarrhea can cause pH to vary outside normal range. 17. a 18. By using a known amount of a base, you can find the original concentration of an acid in a reaction. Does the pH change if you have a greater volume of the substance? Metabolic acidosis is caused by low levels of (HCO3-/CO2). Write the conjugate base for each of the following: a. H2S c. NH3 b. HS-1 d. H2SO3 18. a. HS-1 b. S-2 c. NH2-1 d. HSO3-1 pH practice - Answers 1) What is the pH and pOH of a 1.2 x 10-3 HBr solution? In this lab, you will perform a titration using sodium hydroxide and acetic acid (in vinegar). In essence, a base is the opposite of an acid. Users can model and simulate chemical reactions, focusing on thermodynamics, equilibrium, kinetics, and acid–base titrations, with accompanying virtual lab exercises. See … NaOH is a Lewis base because the lone pairs on the hydroxide ion can be donated to other compounds. However, each of the three theories describes what a base is in different terms. The following neutralization reaction occurs in the classroom. 0.010 g/mol. In your acid / base titration lab, you found the molecular weight of a solid acid. 0.10 g/mol. An electrolyte is a substance that produces a large number of ions when dissolved in solution. Name: Acid-Base Titration Lab Adjusted for online use What you will be doing for this assignment: You will be determining the concentration of an acid solution The Lab simulator says it is an unknown acid but we will be assuming it is HCl to make our math easier! 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T/F: The pH of urine can vary anywhere from 4.5-8? I had to teach the class about Acids and base then I had to quiz them on it, so this is there quiz. May 14th, 2013 00:50:30 AM . Acid and Base Worksheet - Answers. 1. with a pH of 4.5 it is a (strong/weak) acid because it (does/doesn't) completely dissociate in water. For example, limestone is made of a substance that is a base when it is dissolved in water. 0.0025 g/mol. Strong laboratory acids typically have pH values less than 0 (negative pH values) and strong laboratory bases typically have pH values greater than 14. You will be testing a strong acid, HCl, solution and a weak acid, HC2H3O2, solution. a) ammonium sulfate (NH4)2SO4 b) cobalt (III) nitride CoN c) carbon disulfide CS2 d) aluminum carbonate Al2(CO3)3 e) chlorine Cl2 8) Write the conjugate acid for each of the following: a. HPO4-2 b. NO2-1 c. HS-1 d. S-2 a. H2PO4-1 b. HNO2 c. H2S d. HS-1 17. 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