Suppose you dissolve 0.325g of asprin (molar mass = 180.2g/mol) in 0.500L of H20. Asprin is...
Suppose you dissolve 0.325g of asprin (molar mass = 180.2g/mol) in 0.500L of H20. Asprin is a weak acid. What is the pH?
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Suppose you dissolve 0.325g of asprin (molar mass = 180.2g/mol)
in 0.500L of H20. Asprin is...
You dissolve 7.1 g of compound X (molar mass = 151.6 g/mol) in 1.62L of solvent...
You dissolve 7.1 g of compound X (molar mass = 151.6 g/mol) in 1.62L of solvent Y, which has a density of 0.90 g/mL. What is the molality?
14. Draw a tautomer of barbituric acid. 15. If I dissolve 12.5 g barbituric acid (molar...
14. Draw a tautomer of barbituric acid. 15. If I dissolve 12.5 g barbituric acid (molar mass 128.09 g/mol) and 7.5 g sodium barbiturate (molar mass 150.19 g/mol) in 1.00 L of water, what is the pH of the resulting solution?
5. The Ka and Molar Mass of a Monoprotic Weak Acid a. Suppose that–unknown to you–the...
5. The Ka and Molar Mass of a Monoprotic Weak Acid a. Suppose that–unknown to you–the primary standard KHP (potassium hydrogen phthalate, KHC8H4O4) had a potassium iodide impurity of approximately one percent by mass. How would this have influenced the calculated molarity of your sodium hydroxide solution? Would your calculated value be too low, too high, or unchanged? Explain your answer. b. Sketch a typical titration curve for a monoprotic weak acid titrated with a strong base. Label the axes...
Please show work/explain: 1) The molar mass of succinic acid is 118.09g/mol. Suppose a 1.1519g sample...
Please show work/explain: 1) The molar mass of succinic acid is 118.09g/mol. Suppose a 1.1519g sample of succinic acid is titrated with 25.95mL of 0.9913M NaOH solution. Is Succinic acid monoprotic/diprotic/triprotic or tetraprotic and why, show work. 2) 2C2H6(g)+7o2(g)→4co2(g)+6h2o(g) Standard Enthalpy is -3120.6kj/mol What mass of ethane must be combusted in order to heat 366g of water from 25.0C to 100.0C. ASsume the heat transfer is 100% efficient? 3) 2HCl + caco3 --> H20 + CO2 + CaCl2. Assuming the...
1. A weak monoprotic acid has molar mass 180 g/mol. When 1.00 g of this acid is...
1. A weak monoprotic acid has molar mass 180 g/mol. When 1.00 g of this acid is dissolved in enough water to obtain a 300 mL solution, the pH of the resulting solution is found to be 2.62. What is the value of Ka for this acid? 2. A weak monoprotic acid has pKa = 3.08. Calculate the percent ionization of a 0.35 M solution of this acid. 3. Calculate the pH of a solution that is 0.050 M in CH3COOH...
What would be for the mol reacted,, mol NH4X in sample, and yhr average molar mass?...
What would be for the mol reacted,, mol NH4X in sample, and yhr
average molar mass?
CALCULATIONS A. NaOH Preparation: Approximate molarity of NaOH 0.48 M B. NaOH Standardization: Trial # Mass of KHP E 1.7249 1.9569 1.8799 Volume of NaOH 18.58 L 20.58mLihat 19.71 mL Molarity of NaOH 0.4544 M 0.4654M 0. 3 M 0.4668M Average molarity of NaOH: 0.4668 M 0.4622 M C. Molar Mass of NH X Salt 1. Volume of NaOH 0.025 0.025 0.025L 2. Molarity...
An unknown monoprotic acid has a molar mass of 72.0 g/mol. When 9.30 g of the...
An unknown monoprotic acid has a molar mass of 72.0 g/mol. When 9.30 g of the acid is dissolved in 0.750 L of water, the pH of the solution is 3.850. What is the pKa of the unknown acid?
You mixed 5.25 g of methanol and a carboxylic acid whose molar mass is 138.12 g/mol...
You mixed 5.25 g of methanol and a carboxylic acid whose molar mass is 138.12 g/mol and heated to obtain an ester. What is the molar mass (in g/mol) of the ester produced? Give a numerical answer to the nearest 0.01.
Assume you dissolve 0.367 g of the weak acid benzoic acid, CH3CO2H, in enough water to...
Assume you dissolve 0.367 g of the weak acid benzoic acid, CH3CO2H, in enough water to make 1.00 x 102 mL of solution and then titrate the solution with 0.101 M NaOH. K, for benzoic acid = 6.3 x 10-5) CH, CO,H(aq) + OH- (aq) = CH,CO, - (aq) + H20(0) a. What was the pH of the original benzoic acid solution? pt pl pH = pt b. What are the concentrations of all of the following ions at the...
determination of the molar mass and ionization constatant of a weak, monoprotoc acid. ( Lab 8)...
determination of the molar mass and ionization constatant of a
weak, monoprotoc acid. ( Lab 8)
I need help with the rest of the table.
Instructor Name EXPERIMENTS DETERMINATION OF THE MOLAR MASS AND IONIZATION CONSTANT OF A WEAK, MONOPROTIC ACID Report Sheet B. TITRATION OF ACETIC ACID Trial 1 Trial 2 Trial 3 Acetic acid/L solution Volume of acetic acid (mL) Initial buret volume (ml) 3g/L 30 ml 30mL 30mL OmL OmL OML T 14mL 16ML | 15mL |...
You dissolve 7.1 g of compound X (molar mass = 151.6 g/mol) in 1.62L of solvent Y, which has a density of 0.90 g/mL. What is the molality?
14. Draw a tautomer of barbituric acid. 15. If I dissolve 12.5 g barbituric acid (molar mass 128.09 g/mol) and 7.5 g sodium barbiturate (molar mass 150.19 g/mol) in 1.00 L of water, what is the pH of the resulting solution?
What would be for the mol reacted,, mol NH4X in sample, and yhr
average molar mass?
CALCULATIONS A. NaOH Preparation: Approximate molarity of NaOH 0.48 M B. NaOH Standardization: Trial # Mass of KHP E 1.7249 1.9569 1.8799 Volume of NaOH 18.58 L 20.58mLihat 19.71 mL Molarity of NaOH 0.4544 M 0.4654M 0. 3 M 0.4668M Average molarity of NaOH: 0.4668 M 0.4622 M C. Molar Mass of NH X Salt 1. Volume of NaOH 0.025 0.025 0.025L 2. Molarity...
Assume you dissolve 0.367 g of the weak acid benzoic acid, CH3CO2H, in enough water to make 1.00 x 102 mL of solution and then titrate the solution with 0.101 M NaOH. K, for benzoic acid = 6.3 x 10-5) CH, CO,H(aq) + OH- (aq) = CH,CO, - (aq) + H20(0) a. What was the pH of the original benzoic acid solution? pt pl pH = pt b. What are the concentrations of all of the following ions at the...
determination of the molar mass and ionization constatant of a
weak, monoprotoc acid. ( Lab 8)
I need help with the rest of the table.
Instructor Name EXPERIMENTS DETERMINATION OF THE MOLAR MASS AND IONIZATION CONSTANT OF A WEAK, MONOPROTIC ACID Report Sheet B. TITRATION OF ACETIC ACID Trial 1 Trial 2 Trial 3 Acetic acid/L solution Volume of acetic acid (mL) Initial buret volume (ml) 3g/L 30 ml 30mL 30mL OmL OmL OML T 14mL 16ML | 15mL |...
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