Chemistry - Unit Test Review - Mixtures, Solutions, And Acid-Base Reactions, Chemistry Unit Review, Chemistry Unit Review Flashcards
040 MWhich of the following substances will cause the greatest temperature change if the same amount of each substance is added to 1. Which term best describes this compound's behavior? Na2CO3(aq) + CaCl2(aq) 2NaCl(aq) + CaCO3(s)A chemist dilutes a 1. If the concentration of the solution that is obtained is 0. 6 g of carbon tetrachloride is 0. Use aka BWhich piece of glassware shown below is used to hold and dispense a solution of known concentration during a titration? How many grams of NaCl will be needed to form 600 mL of a saturated solution at 100ºC? The equation for the reaction is given below. 529 m. How many moles of benzene were dissolved? MilkThe pH of lemon juice at 298 K is found to be 2. 0 M KNO3 by adding water to it. Determining the concentration of an unknown baseWhy is citric acid added to food? 44 g/mol, what is the mass of NaCl that was dissolved? A, a base turns red litmus blueThe two products that are formed when a solution of HNO3 and a solution of NaOH react are water andB, NaNO3Which statement best describes salts?
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MethanolA 150 mL sample of hydrochloric acid (HCl) completely reacted with 60. A suspensionWhich factor influences both solubility and the rate of dissolution? Partial negative charge on the oxygen atom because it pulls electrons from the hydrogen atomsBrownian motion is not observed in a mixture that includes two phases. The decrease in the freezing point of a solution as a function of the number of particles that are dissolved in the solutionThe molality of a solution that is made by dissolving a certain mass of benzene in 20. What is the concentration of ions in the solution? Solutions of salt and water conduct nsider the chemical equation below.
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40 m. If the molar mass of NaCl is 58. Which compound is most likely the strongest electrolyte? Arrhenius acidWhich of these is true about a pH meter? A solution contains 90 mL of methanol, 18 mL of propanol, and 2 mL of diethyl ether. Which is the solvent in this solution? D, increasing the surface area of soluteThe graph below shows how solubility changes with temperature. Look at the reaction below of phenol (C6H5OH) with water: Which reactant acts as an acid by contributing a H+ ion to create H3O+ in the chemical equation? HCl + NaOH NaCl + H2O. It must generate hydroxide ions in of the following is the last step in performing a titration? Add more solvent to decrease the molality of a solution that was made by dissolving NaCl in 1. D, 240 gHow does litmus paper identify a base? Which is the net ionic equation? 0080 M, what is its volume? TemperatureWhich statement best describes the process of making a solution by diluting a stock solution?
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What was the original concentration of the HCl solution? C6H5OH(aq)What is the Arrhenius definition of a base? This occurs when hydrogen ions move from the substance to associate with water molecules. Aka CWhich characteristic best identifies an Arrhenius base? A base turns red litmus statement best describes salts? FeCl3Which describes the polarity in a water molecule? Which best identifies the mixture? 250 mLThe table shows the characteristics of four substances after they are placed in water.
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Water molecules surround solute molecules. Increasing the surface area of soluteThe equivalence point in a titration refers to the point whenthe number of moles of one reactant reacts completely with the moles of the other does litmus paper identify a base? It can be used in any acid-base titration. 35 gWhich represents a double replacement reaction and would occur? Lewis acidA substance is dissolved in water and produces hydronium ions.
D, Solutions of salt and water conduct electricityWhich statement accurately describes part of the dissolving process of a polar solute in water? To add tartnessA compound accepts electrons from another substance to form a covalent bond. Aka AAn acid is a substance that increases the concentration of H3O+ ions in solution. YWhich of the following best explains freezing point depression?