Concept explainers
Interpretation:
The given reactant
Concept introduction:
Balancing reaction:
Balanced reaction is a
Steps in balancing the information
- Step 1: Write the unbalanced equation
- Step 2: Find the coefficient to balance the equation.
- The coefficient should be reduced to the smallest whole number.
Precipitation reaction: The formation of the product is insoluble when the ions combine in the solution is called precipitation reaction.
Acid - base reaction: Formation of the salt from the cation from the base and anion from the acid and formation of water is also the product.
Gas forming reaction: The reaction of acid and metal carbonates which produce carbonic acid. The carbonic acid decomposes which gives water and carbon dioxide.
Most of the ionic compounds are soluble in water, very few of the ionic compounds are sparingly soluble, and some of the ionic compounds are insoluble in water. When it is soluble in water ions gets separated in the solution.
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Chemistry: The Molecular Science
- One half liter (500. mL) of 2.50 M HCl is mixed with 250. mL of 3.75 M HCl. Assuming the total solution volume after mixing is 750. mL, what is the concentration of hydrochloric acid in the resulting solution? What is its pH?arrow_forwardReactions represented by the following equations take place in water solutions. Write each molecular equation in total ionic form, then identify spectator ions and write the equations in net ionic form. Solids that do not dissolve are designated by s, gases that do not dissolve are designated by g, and substances that dissolve but do not dissociate appear in blue. a. H2O(l)+Na2SO3(aq)+SO2(aq)2NaHSO3(aq) b. 3Cu(s)+8HNO3(aq)3Cu(NO3)2(aq)+2NO(g)+4H2O(l) c. 2HCl(aq)+CaO(s)CaCl2(aq)+H2O(l) d. CaCO3(s)+2HCl(aq)CaCl2(aq)+CO2(aq)+H2O(l) e. MnO2(s)+4HCl(aq)MnCl2(aq)+Cl2(aq)+2H2O(l) f. 2AgNO3(aq)+Cu(s)Cu(NO3)2(aq)+2Ag(s)arrow_forwardExplain the difference between a monoprotic acid, a diprotic acid, and a triprotic acid. Give an example of each.arrow_forward
- Some of the substances commonly used in stomach antacids are MgO, Mg(OH)2, and Al(OH)3. a. Write a balanced equation for the neutralization of hydrochloric acid by each of these substances. b. Which of these substances will neutralize the greatest amount of 0.10 M HCl per gram?arrow_forwardYou are given four different aqueous solutions and told that they each contain NaOH, Na2CO3, NaHCO3, or a mixture of these solutes. You do some experiments and gather these data about the samples. Sample A: Phenolphthalein is colorless in the solution. Sample B: The sample was titrated with HCl until the pink color of phenolphthalein disappeared, then methyl orange was added. The solution became pink. Methyl orange changes color from pH 3.01 (red) to pH 4.4 (orange). Sample C: Equal volumes of the sample were titrated with standardized acid. Using phenolphthalein as an indicator required 15.26 mL of standardized acid to change the phenolphthalein color. The other sample required 17.90 mL for a color change using methyl orange as the indicator. Sample D: Two equal volumes of the sample were titrated with standardized HCl. Using phenolphthalein as the indicator, it took 15.00 mL of acid to reach the equivalence point; using methyl orange as the indicator required 30.00 mL HCl to achieve neutralization. Identify the solute in each of the solutions.arrow_forwardWhich one of the following statements is correct concerning the acetic acid in vinegar and neutralizing capacity of antacid experiments? O An antacid tablet is dissolved in H2O first then titrated with standardized NaOH solution. O One of the active ingredients in most commercial antacid tablets is Ca(OH)2. O The antacid tablet should be dissolved in an excess amount of HCI solution. The titration flask should be rinsed with vinegar solution before titration with NaOH solution. O Starch can be used as an indicator in antacid experiment.arrow_forward
- An analytical chemist weighs out 0.318 g of an unknown triprotic acid into a 250 mL volumetric flask and dilutes to the mark with distilled water. He then titrates this solution with 0.0600 M NaOH solution. When the titration reaches the equivalence point, the chemist finds he has added 82.8 mL of NaOH solution. Calculate the molar mass of the unknown acid. Be sure your answer has the correct number of significant digits. mol x10 x 3arrow_forwardThe flask shown here contains 10.0 mL of HCl and a few drops of phenolphthalein indicator. The buret contains 0.180 M NaOH. What volume of NaOH is needed to reach the end point of the titration? What was the initial concentration of HCl?arrow_forwardAn analytical chemist weighs out 0.203 g of an unknown diprotic acid into a 250 mL volumetric flask and dilutes to the mark with distilled water. He then titrates this solution with 0.1500M NaOH solution. When the titration reaches the equivalence point, the chemist finds he has added 18.0 mL of NaOH solution. Calculate the molar mass of the unknown acid. Be sure your answer has the correct number of significant digits. mol Explanation Check 0.9 X 4 S MacBook Air © 2023 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center Iarrow_forward
- An analytical chemist weighs out 0.203 g of an unknown diprotic acid into a 250 mL volumetric flask and dilutes to the mark with distilled water. He then titrates this solution with 0.1500M NaOH solution. When the titration reaches the equivalence point, the chemist finds he has added 18.0 mL of NaOH solution. Calculate the molar mass of the unknown acid. Be sure your answer has the correct number of significant digits. A g mol Explanation Check 20 X 000 5 MacBook Air F7 DII FB Ⓒ2023 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Acce F9 F10 C F11 Carrow_forwardAn analytical chemist weighs out 0.311 g of an unknown diprotic acid into a 250 mL volumetric flask and dilutes to the mark with distilled water. He then titrates this solution with 0.1800M NaOH solution. When the titration reaches the equivalence point, the chemist finds he has added 23.0 mL of NaOH solution. Calculate the molar mass of the unknown açid. Be sure your answer has the correct number of significant digits. soft C W icrosoft Microsoft 6.52.210... esc 0 mol I Don't Know ! 1 Q A T option N 2 Submit 9,062 W S 280 X H command #3 E D x10 14 X $ 4 DEC 1 C R F S 07 dº % 5 V T G tv 6 Y B 201 & 7 H 2 Ⓒ2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibility U N 20 ZA@ 00 * 8 J M 9 K H дв W L P V ¡ + 11 command option 0 16 A }arrow_forwardAn analytical chemist weighs out 0.244 g of an unknown diprotic acid into a 250 mL volumetric flask and dilutes to the mark with distilled water. He then titrates this solution with 0.1700M NaOH solution. When the titration reaches the equivalence point, the chemist finds he has added 21.4 mL of NaOH solution. Calculate the molar mass of the unknown acid. Be sure your answer has the correct number of significant digits. molarrow_forward
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