A student worker in the Cal Poly chemistry stockroom is asked to determine the concentration of an aqueous solution of Ca(OH), by titration with an aqueous HNO, standard. Given that the student started with 16.4 mL of Ca(OH)2 and reached the end point with 0.9021 mL of the HNO, 20.9 M standard, what is the concentration of the Ca(OH)2 solution?

Q: Suppose you are titrating a solid mixture containing KHP (molar mass=204.2 g/mol) and a salt…

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Q: 4. A solution of malonic acid, H₂C3H₂O4, was standardized by titration with 0.1000 M NaOH solution.…

A: The question is based on the concept of titrations . we need to calculate concentration of malonic…

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. He carefully weighs…

A: Answer  In the titration reaction of oxalic acid and sodium…

Q: The molarity of an aqueous solution of hydrochloric acid, HCl, is determined by titration with a…

A: The neutralisation reaction is given as  2 HCl + Ba(OH)2 ------> BaCl2 + 2 H2O  Hence from the…

Q: An 8.65-g sample of an unknown group 2A metal hydroxide is dissolved in 85.0 mL of water. An…

A: The point where equivalent quantities are brought together is called equivalence point. The reaction…

Q: You are going to standardize your sodium hydroxide by titrating with potassium hydrogen phthalate.…

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Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. He carefully weighs…

A: A numerical problem based on quantitative analysis, which is to be accomplished.

Q: A 4.500-g sample containing sodium bicarbonate (NaHCO3, 84.01 g/mol) and other substances is…

A: We will use the balanced neutralization reaction to find out the moles of NaHCO3, that are getting…

Q: The flask contains 10.0 mL of HCl and a few drops of phenolphthalein indicator. The buret contains…

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Q: The end point in a titration of a 50.00-mL sample of aqueous HCl was reached by addition of 35.23 mL…

A: Given reaction:  HCl(aq) + NaOH(aq) ⟶ NaCl(aq) + H2 O(l)

Q: You dissolve a 0.553 g sample of an unknown monoprotic weak acid in water to a total volume of 20.0…

A: At equivalence point models of acid are equal to moles of base . So first we would calculate models…

Q: What mass of NaOH is needed to precipitate the Cd2+ ions from 33.0 mL of 0.460 M Cd(NO3)2 solution?

A: Volume of solution = 33mLMolarity of solution = 0.460 MMass of NaOH to precipitate Cd = ?

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. She carefully weighs…

A: Given: The mass of oxalic acid = 350 mg The volume of the oxalic acid solution = 250 mL The volume…

Q: A weak acid- strong base titration was performed as follows: 10.00 mL of 0.10 M acetic acid were…

A: Given data,Molarity of acetic acid=0.1MVolume of acetic acid=10mLDilution to 100mLMolarity of…

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. He carefully weighs…

A: Here we are required to find the Molarity of sodium hydroxide solution required for standardization…

Q: sample of solid calcium hydroxide is allowed to stand in water until a saturated solution is fomed.…

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Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. He carefully weighs…

A: we have to calculate molarity of NaOH solution

Q: A 13.8 mL solution of 0.176 M phosphoric acid (ag) is to be titrated with 0.384 M sodium hydroxide…

A: The given data contains, Molarity of phosphoric acid = 0.176 M. Volume of phosphoric acid = 13.8 ml.…

Q: color.  What is the concentration of the NaOH solution? The molar mass

A: At equivalent point,  Geq. of NaOH  = Geq. of KHP N1V1 = N2V2 M × 16.8 /1000 = 0.261/204 M = 0.076M

Q: A chemistry student weighs out 0.218 g of ascorbic acid (H,C,H,O), a diprotic acid, into a 250. mL…

A: Given: mass of ascorbic acid = 0.218 g Molar mass of ascorbic acid , H2C6H6O6 = 176 g/mol No. of…

Q: In an experiment, 45.50 mL of AI(OH)3 was titrated with 35.68 of 0.98652 M HCI. Find the molarity of…

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Q: You have a 39.2 mL sample of hydrochloric acid (HCl) of unknown concentration. A titration is…

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Q: A 3.00 mL bleach (NaOCI is the active ingredient) sample is mixed with potassium iodide and acid to…

A: The overall reaction taking place during this titration is- ClO- +2S2O32- +2H+→Cl- +S4O62- + H2O…

Q: Ascorbic acid (Vitamin C, H2C6H6O6) is a diprotic acid.  In a laboratory exercise, a vitamin C…

A: In the given sample,  one tablet of ascorbic acid [vitamin-C (H2C6H6O6)] reacts with 29.5 mL of…

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. He carefully weighs…

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Q: You are carrying out an experiment to determine the MW of a solid acid with the generic formula H3A.…

A: mass of solid acid (H3A) = 0.362 gMolar mass of solid acid (H3A) = ? g/molConcentration of Sr(OH)2…

Q: 17. A science teacher needs to determine the concentration of an old, unmarked bottle of…

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Q: Raferences) The concentration of a certain sodium hydroxide solution was determined by using the…

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Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. He carefully weighs…

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Q: Write the balanced molecular equation for the reaction. Write the net ionic equation for the…

A: number of moles = mass/molar mass  molar mass of AgCl is 143.32 g/mol     Since, you have posted a…

Q: A volume of 15.00 mL of NaOH was titrated with 11.34 mL of 0.1311 M HCl.  Calculate the molarity of…

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Q: 50.0 mL solution of Ca(OH)₂ with an unknown concentration was titrated with 0.340 M HNO₃. To reach…

A: The question is based on the concept of chemical reactions. we need to write reaction taking place…

Q: The amount of nitrogen in an organic substance can be determined by an analytical method called the…

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Q: An analytical chemist weighs out 0.206 g of an unknown monoprotic acid into a 250 mL volumetric…

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Q: A food chemist determines the concentration of acetic acid in a sample of apple cider vinegar by…

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Q: By titration, it is found that 62.3 mL of 0.194 M NaOH(aq) is needed to neutralize 25.0 mL of…

A: Given: The volume of NaOH= 62.3  mL Concentration of NaOH= 0.194 M Volume of HCl = 25.0 mL To…

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.