Precipitation Stoichiometry PL 1. When solutions of lead(II) nitrate and aluminum chloride are mixed, a precipitate forms. Write a balanced formula equation for the reaction. a. (aq) +3 3 Pb² (NO3) (2) 2A1+ ³ (1.1) 2A1 (NO 3 ) 2 + 3 PbCl 2 (5) b. What volume of a 0.200 M lead(II) nitrate solution is needed to completely form a precipitate when added to 2.48 mL of 0.300 M aluminum chloride? C. 2.48mL .002484 0.200 What is the mass of precipitate formed in (b)? 2. What mass of precipitate is formed when 71.3 mL of 0.500 M iron(III) nitrate are mixed with 112 mL of 0.800 M sodium carbonate? 3. What volume of 2.0 M K₂SO, is needed to react with an excess of Zn(CH3CO2)2 to produce 25.0 grams of zinc sulfate? - 4. What mass of sodium chromate is required to precipitate all of the silver ions from 75.0 mL of a 0.100 M silver nitrate solution? 5. What mass of solid aluminum hydroxide can be produced when 50.0 mL of 0.200 M aluminum nitrate is added to 200.0 mL of 0.100 M KOH? n 4.5: Acid Chemical

Precipitation Stoichiometry PL 1. When solutions of lead(II) nitrate and aluminum chloride are mixed, a precipitate forms. Write a balanced formula equation for the reaction. a. (aq) +3 3 Pb² (NO3) (2) 2A1+ ³ (1.1) 2A1 (NO 3 ) 2 + 3 PbCl 2 (5) b. What volume of a 0.200 M lead(II) nitrate solution is needed to completely form a precipitate when added to 2.48 mL of 0.300 M aluminum chloride? C. 2.48mL .002484 0.200 What is the mass of precipitate formed in (b)? 2. What mass of precipitate is formed when 71.3 mL of 0.500 M iron(III) nitrate are mixed with 112 mL of 0.800 M sodium carbonate? 3. What volume of 2.0 M K₂SO, is needed to react with an excess of Zn(CH3CO2)2 to produce 25.0 grams of zinc sulfate? - 4. What mass of sodium chromate is required to precipitate all of the silver ions from 75.0 mL of a 0.100 M silver nitrate solution? 5. What mass of solid aluminum hydroxide can be produced when 50.0 mL of 0.200 M aluminum nitrate is added to 200.0 mL of 0.100 M KOH? n 4.5: Acid Chemical

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter13: The Chemistry Of Solutes And Solutions

Section: Chapter Questions

Problem 137QRT

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Sodium carbonate is a reagent that may be used to standardize acids in the same way that you have used KHP in this experiment. In such a standardization it was found that a 0.498-g sample of sodium carbonate required 22.9 mL of a sulfuric acid solution to reach the end point for the reaction. Na2CO3(aq)+H2SO4(aq)→H2O(l)+CO2(g)+Na2SO4(aq) What is the molarity of the H2SO4?
1. An aqueous solution known as Ringer's lactate is administered intravenously to trauma victims suffering from blood loss or severe burns. The solution contains the chloride salts of sodium, potassium, and calcium and is also 3.75 mM in sodium lactate (NaC3H5O3). How many grams of sodium lactate are needed to prepare 7.50 liters of Ringer's lactate? 2. Toxic Cr(VI) can be precipitated from an aqueous solution by bubbling SO2 through the solution. How much SO2 is required to treat 3.00 × 108 L of 5.00×10-2 mM Cr(VI)?
Potassium hydrogen phthalate is a solid, monoprotic acid frequently used in the laboratory as a primary standard. It has the unwieldy formula of KHC8H4O4. This is often written in shorthand notation as KHP.If 24.14 mL of a sodium hydroxide solution are needed to neutralize 1.667 grams of KHP, what is the concentration (mol/L) of the sodium hydroxide solution?fill in the blank 3ef718fb4049f82_1
(1) Careless Carlie weighed her KHP sample, but forgot to bring her report sheet along, so she recorded the mass of KHP on a paper towel. During her titration, which required 18.46 mL of base, she spilled some base on her hands. She remembered to wash her hands, but forgot about the data on the towel, and used it to dry her hands. When she went to calculate the molarity of the base, Carlie discovered that she didn’t have the mass of her KHP. Her kindhearted instructor told Carlie that her base was 0.2987 M. Calculate the mass of Carlie’s KHP sample. Show calculations (2) What mass of solid NaOH would be needed to make 645 mL of Carlie’s NaOH solution? Show calculations.
Potassium hydrogen phthalate is a solid, monoprotic acid frequently used in the laboratory as a primary standard. It has the unwieldy formula of KHC8H4O4. This is often written in shorthand notation as KHP.If 33.7 mL of a sodium hydroxide solution are needed to neutralize 1.28 grams of KHP, what is the molarity of the sodium hydroxide solution?
Sulfamic acid (H3NSO3) is a primary standard that can be used to standardized sodium hydroxide. What is the molarity if 33.26 mL reacts with 0.3337 g sulfamic acid. MW=97
The metathesis reaction between sodium carbonate and cobalt (III) chloride is shown below3 Na2CO3 (aq) + 2 CoCl3 (aq) ➝ Co2(CO3)3 (s) + 6 NaCl (aq)How many grams of solid cobalt (III) carbonate can be produced by the reaction of 250.0 ml of 0.325 M sodium carbonate solution with 175.0 ml of 0.800 M cobalt (III) chloride solution?***Answer*** in grams of Co2(CO3)3.
What volume in liters of 0.125 M H2SO4 is required to neutralize a solution prepared by dissolving 12.5 g of KOH in 250 mL of water? Group of answer choices 0.891 1.82 3.64 0.455
Sodium formate, NaCHO2, can be titrated in neutral solution according to the equation:CHO2- + MnO4- + H2O → MnO2 + CO2 + OH-.If 10.00 ml. of the KMnO4 are equivalent to 0.08161 gram of sodium formate by this method, what is the value of each milliliter in terms of millimoles of H2O2?
Ericic acid, CH3(CH2)7 CH=CH(CH2)11COOH, is commonly found in rapeseed oil. If 8.77 grams of the acid is extracted from one kilogram of rapeseed oil, what is its nomality when it is dissolved in 100 mL of water? a) 0.46N b) 0.59N c) 0.26N d) 0.94N
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Vitamin C, ascorbic acid, is an essential nutrient that helps the immune system fight off diseases. One way to consume vitamin C is to eat citrus, like oranges. Ascorbic acid reacts with sodium hydroxide according to the following reaction: HC6H7O6(aq)+NaOH(aq) = NaC6H7O6(aq)+H2O(l) The average orange produces 125.0 mL of juice. A 125.0 mL sample of orange juice required 34.0 mL of 0.0100 M NaOH to complete the reaction. a. What is the concentration of ascorbic acid in the orange juice? b. An adult should consume approximately 90.0 mg of vitamin C a day. How many milliliters of orange juice should someone drink to reach the recommended amount of vitamin C?